Merge m-c to m-i

browser/locales/en-US/searchplugins/google.xml

@@ -16,7 +16,7 @@
 <ShortName>Google</ShortName>
 <Description>Google Search</Description>
 <InputEncoding>UTF-8</InputEncoding>
-<Image width="16" height="16">data:image/png;base64,AAABAAEAEBAAAAEAGABoAwAAFgAAACgAAAAQAAAAIAAAAAEAGAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAADs9Pt8xetPtu9FsfFNtu%2BTzvb2%2B%2Fne4dFJeBw0egA%2FfAJAfAA8ewBBegAAAAD%2B%2FPtft98Mp%2BwWsfAVsvEbs%2FQeqvF8xO7%2F%2F%2F63yqkxdgM7gwE%2FggM%2BfQA%2BegBDeQDe7PIbotgQufcMufEPtfIPsvAbs%2FQvq%2Bfz%2Bf%2F%2B%2B%2FZKhR05hgBBhQI8hgBAgAI9ewD0%2B%2Fg3pswAtO8Cxf4Kw%2FsJvvYAqupKsNv%2B%2Fv7%2F%2FP5VkSU0iQA7jQA9hgBDgQU%2BfQH%2F%2Ff%2FQ6fM4sM4KsN8AteMCruIqqdbZ7PH8%2Fv%2Fg6Nc%2Fhg05kAA8jAM9iQI%2BhQA%2BgQDQu6b97uv%2F%2F%2F7V8Pqw3eiWz97q8%2Ff%2F%2F%2F%2F7%2FPptpkkqjQE4kwA7kAA5iwI8iAA8hQCOSSKdXjiyflbAkG7u2s%2F%2B%2F%2F39%2F%2F7r8utrqEYtjQE8lgA7kwA7kwA9jwA9igA9hACiWSekVRyeSgiYSBHx6N%2F%2B%2Fv7k7OFRmiYtlAA5lwI7lwI4lAA7kgI9jwE9iwI4iQCoVhWcTxCmb0K%2BooT8%2Fv%2F7%2F%2F%2FJ2r8fdwI1mwA3mQA3mgA8lAE8lAE4jwA9iwE%2BhwGfXifWvqz%2B%2Ff%2F58u%2Fev6Dt4tr%2B%2F%2F2ZuIUsggA7mgM6mAM3lgA5lgA6kQE%2FkwBChwHt4dv%2F%2F%2F728ei1bCi7VAC5XQ7kz7n%2F%2F%2F6bsZkgcB03lQA9lgM7kwA2iQktZToPK4r9%2F%2F%2F9%2F%2F%2FSqYK5UwDKZAS9WALIkFn%2B%2F%2F3%2F%2BP8oKccGGcIRJrERILYFEMwAAuEAAdX%2F%2Ff7%2F%2FP%2B%2BfDvGXQLIZgLEWgLOjlf7%2F%2F%2F%2F%2F%2F9QU90EAPQAAf8DAP0AAfMAAOUDAtr%2F%2F%2F%2F7%2B%2Fu2bCTIYwDPZgDBWQDSr4P%2F%2Fv%2F%2F%2FP5GRuABAPkAA%2FwBAfkDAPAAAesAAN%2F%2F%2B%2Fz%2F%2F%2F64g1C5VwDMYwK8Yg7y5tz8%2Fv%2FV1PYKDOcAAP0DAf4AAf0AAfYEAOwAAuAAAAD%2F%2FPvi28ymXyChTATRrIb8%2F%2F3v8fk6P8MAAdUCAvoAAP0CAP0AAfYAAO4AAACAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACAAQAA</Image>
+<Image width="16" height="16">data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAABUUlEQVR42pWTzUsCYRCH9y9zu3SooCCkjhIRRLeIykXokiWCJ7PvDpZRlz6si1lIQZ3SQxQdOhREpgSm0JeQvfu0+i6I7LKLh4F5h5nnnRl+o6jTdHn8omAYbVqhXqvYFXcEBKFDwcoZZB8B4LkEB9cwGGmFKHb01A1EU9JXzfdvDYZi1lwLwBcVAIwsNWPesIwls7gDtB2Z7N9ujVe+IX2LO2AgItB1OL9vJqsmILDrOoK02IkBAdYy4FsQJC5h+VQCHQDWTqYSgo8fuHuRxS4Ae3stQ7UGE5ttAHqCUgfxC7m4ryrowOyeO6CxqHwZxtYFqtYc5+kNan/gDTsAeueEIRj7n/rmRQMwueUAGF0VAAT3rQBTC0Y3DoDOGbm00icML4oWHYSTgo0MFqjlmPpDgqMcFCuQf4erBzjOwXjcriu9qHg0uutO2+es6fl67T9ptebvFRjBVgAAAABJRU5ErkJggg==</Image>
 <Url type="application/x-suggestions+json" method="GET" template="https://www.google.com/complete/search?client=firefox&amp;q={searchTerms}"/>
 <Url type="text/html" method="GET" template="https://www.google.com/search">
 #expand   __GOOGLE_PARAMS__

configure.in

@@ -1,3 +1,4 @@
+
 dnl -*- Mode: Autoconf; tab-width: 4; indent-tabs-mode: nil; -*-
 dnl vi: set tabstop=4 shiftwidth=4 expandtab syntax=m4:
 dnl This Source Code Form is subject to the terms of the Mozilla Public
@@ -197,7 +198,7 @@ if test -n "$gonkdir" ; then
         ;;
     esac
 
-    CPPFLAGS="-DANDROID -isystem $gonkdir/bionic/libc/$ARCH_DIR/include -isystem $gonkdir/bionic/libc/include/ -isystem $gonkdir/bionic/libc/kernel/common -isystem $gonkdir/bionic/libc/kernel/$ARCH_DIR -isystem $gonkdir/bionic/libm/include -I$gonkdir/frameworks/base/opengl/include -I$gonkdir/frameworks/base/native/include -I$gonkdir/hardware/libhardware/include -I$gonkdir/hardware/libhardware_legacy/include -I$gonkdir/system -I$gonkdir/system/core/include -isystem $gonkdir/bionic -I$gonkdir/frameworks/base/include -I$gonkdir/external/dbus -I$gonkdir/external/bluetooth/bluez/lib $CPPFLAGS -I$gonkdir/frameworks/base/services/sensorservice -I$gonkdir/frameworks/base/services/camera -I$gonkdir/system/media/wilhelm/include"
+    CPPFLAGS="-DANDROID -isystem $gonkdir/bionic/libc/$ARCH_DIR/include -isystem $gonkdir/bionic/libc/include/ -isystem $gonkdir/bionic/libc/kernel/common -isystem $gonkdir/bionic/libc/kernel/$ARCH_DIR -isystem $gonkdir/bionic/libm/include -I$gonkdir/frameworks/base/opengl/include -I$gonkdir/frameworks/base/native/include -I$gonkdir/hardware/libhardware/include -I$gonkdir/hardware/libhardware_legacy/include -I$gonkdir/system -I$gonkdir/system/core/include -isystem $gonkdir/bionic -I$gonkdir/frameworks/base/include -I$gonkdir/external/dbus -I$gonkdir/external/bluetooth/bluez/lib $CPPFLAGS -I$gonkdir/frameworks/base/services/sensorservice -I$gonkdir/frameworks/base/services/camera -I$gonkdir/system/media/wilhelm/include -I$gonkdir/frameworks/base/include/media/stagefright -I$gonkdir/frameworks/base/include/media/stagefright/openmax -I$gonkdir/frameworks/base/media/libstagefright/rtsp -I$gonkdir/frameworks/base/media/libstagefright/include -I$gonkdir/dalvik/libnativehelper/include/nativehelper"
     CFLAGS="-mandroid -fno-short-enums -fno-exceptions $CFLAGS"
     CXXFLAGS="-mandroid -fno-short-enums -fno-exceptions -Wno-psabi $CXXFLAGS $STLPORT_CPPFLAGS"
     dnl Add -llog by default, since we use it all over the place.

docshell/test/file_bug590573_1.html

@@ -2,7 +2,7 @@
 <body onpopstate='opener.page1Popstate();' onload='opener.page1Load();'
       onpageshow='opener.page1PageShow();'>
 
-<div style='height:300%' id='div1'>This is a very tall div.</div>
+<div style='height:10000px' id='div1'>This is a very tall div.</div>
 
 </body>
 </html>

dom/browser-element/BrowserElementScrolling.js

@@ -206,42 +206,20 @@ const ContentPanning = {
     let metrics = data.json;
     let displayPort = metrics.displayPort;
 
-    let screenWidth = metrics.screenSize.width;
-    let screenHeight = metrics.screenSize.height;
+    let compositionWidth = metrics.compositionBounds.width;
+    let compositionHeight = metrics.compositionBounds.height;
 
     let x = metrics.x;
     let y = metrics.y;
 
     this._zoom = metrics.zoom;
     this._viewport = new Rect(x, y,
-                              screenWidth / metrics.zoom,
-                              screenHeight / metrics.zoom);
+                              compositionWidth / metrics.zoom,
+                              compositionHeight / metrics.zoom);
     this._cssPageRect = new Rect(metrics.cssPageRect.x,
                                  metrics.cssPageRect.y,
                                  metrics.cssPageRect.width,
                                  metrics.cssPageRect.height);
-
-    let cwu = content.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
-    if (this._screenWidth != screenWidth || this._screenHeight != screenHeight) {
-      cwu.setCSSViewport(screenWidth, screenHeight);
-      this._screenWidth = screenWidth;
-      this._screenHeight = screenHeight;
-    }
-
-    // Set scroll position
-    cwu.setScrollPositionClampingScrollPortSize(
-      screenWidth / metrics.zoom, screenHeight / metrics.zoom);
-    content.scrollTo(x, y);
-    cwu.setResolution(displayPort.resolution, displayPort.resolution);
-
-    let element = null;
-    if (content.document && (element = content.document.documentElement)) {
-      cwu.setDisplayPortForElement(displayPort.left,
-                                   displayPort.top,
-                                   displayPort.width,
-                                   displayPort.height,
-                                   element);
-    }
   },
 
   _recvDoubleTap: function(data) {
@@ -272,7 +250,7 @@ const ContentPanning = {
 
       let cssPageRect = this._cssPageRect;
       let viewport = this._viewport;
-      let bRect = new Rect(Math.max(cssPageRect.left, rect.x - margin),
+      let bRect = new Rect(Math.max(cssPageRect.x, rect.x - margin),
                            rect.y,
                            rect.w + 2 * margin,
                            rect.h);

dom/camera/AudioParameter.cpp

@@ -0,0 +1,179 @@
+/*
+ * Copyright (C) 2006-2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AudioParameter"
+//#define LOG_NDEBUG 0
+
+#include <utils/Log.h>
+
+#include <media/AudioParameter.h>
+
+namespace android {
+
+const char *AudioParameter::keyRouting = "routing";
+const char *AudioParameter::keySamplingRate = "sampling_rate";
+const char *AudioParameter::keyFormat = "format";
+const char *AudioParameter::keyChannels = "channels";
+const char *AudioParameter::keyFrameCount = "frame_count";
+const char *AudioParameter::keyInputSource = "input_source";
+
+AudioParameter::AudioParameter(const String8& keyValuePairs)
+{
+    char *str = new char[keyValuePairs.length()+1];
+    mKeyValuePairs = keyValuePairs;
+
+    strcpy(str, keyValuePairs.string());
+    char *pair = strtok(str, ";");
+    while (pair != NULL) {
+        if (strlen(pair) != 0) {
+            size_t eqIdx = strcspn(pair, "=");
+            String8 key = String8(pair, eqIdx);
+            String8 value;
+            if (eqIdx == strlen(pair)) {
+                value = String8("");
+            } else {
+                value = String8(pair + eqIdx + 1);
+            }
+            if (mParameters.indexOfKey(key) < 0) {
+                mParameters.add(key, value);
+            } else {
+                mParameters.replaceValueFor(key, value);
+            }
+        } else {
+            LOGV("AudioParameter() cstor empty key value pair");
+        }
+        pair = strtok(NULL, ";");
+    }
+
+    delete[] str;
+}
+
+AudioParameter::~AudioParameter()
+{
+    mParameters.clear();
+}
+
+String8 AudioParameter::toString()
+{
+    String8 str = String8("");
+
+    size_t size = mParameters.size();
+    for (size_t i = 0; i < size; i++) {
+        str += mParameters.keyAt(i);
+        str += "=";
+        str += mParameters.valueAt(i);
+        if (i < (size - 1)) str += ";";
+    }
+    return str;
+}
+
+status_t AudioParameter::add(const String8& key, const String8& value)
+{
+    if (mParameters.indexOfKey(key) < 0) {
+        mParameters.add(key, value);
+        return NO_ERROR;
+    } else {
+        mParameters.replaceValueFor(key, value);
+        return ALREADY_EXISTS;
+    }
+}
+
+status_t AudioParameter::addInt(const String8& key, const int value)
+{
+    char str[12];
+    if (snprintf(str, 12, "%d", value) > 0) {
+        String8 str8 = String8(str);
+        return add(key, str8);
+    } else {
+        return BAD_VALUE;
+    }
+}
+
+status_t AudioParameter::addFloat(const String8& key, const float value)
+{
+    char str[23];
+    if (snprintf(str, 23, "%.10f", value) > 0) {
+        String8 str8 = String8(str);
+        return add(key, str8);
+    } else {
+        return BAD_VALUE;
+    }
+}
+
+status_t AudioParameter::remove(const String8& key)
+{
+    if (mParameters.indexOfKey(key) >= 0) {
+        mParameters.removeItem(key);
+        return NO_ERROR;
+    } else {
+        return BAD_VALUE;
+    }
+}
+
+status_t AudioParameter::get(const String8& key, String8& value)
+{
+    if (mParameters.indexOfKey(key) >= 0) {
+        value = mParameters.valueFor(key);
+        return NO_ERROR;
+    } else {
+        return BAD_VALUE;
+    }
+}
+
+status_t AudioParameter::getInt(const String8& key, int& value)
+{
+    String8 str8;
+    status_t result = get(key, str8);
+    value = 0;
+    if (result == NO_ERROR) {
+        int val;
+        if (sscanf(str8.string(), "%d", &val) == 1) {
+            value = val;
+        } else {
+            result = INVALID_OPERATION;
+        }
+    }
+    return result;
+}
+
+status_t AudioParameter::getFloat(const String8& key, float& value)
+{
+    String8 str8;
+    status_t result = get(key, str8);
+    value = 0;
+    if (result == NO_ERROR) {
+        float val;
+        if (sscanf(str8.string(), "%f", &val) == 1) {
+            value = val;
+        } else {
+            result = INVALID_OPERATION;
+        }
+    }
+    return result;
+}
+
+status_t AudioParameter::getAt(size_t index, String8& key, String8& value)
+{
+    if (mParameters.size() > index) {
+        key = mParameters.keyAt(index);
+        value = mParameters.valueAt(index);
+        return NO_ERROR;
+    } else {
+        return BAD_VALUE;
+    }
+}
+
+};  // namespace android

dom/camera/CameraControlImpl.cpp

@@ -196,9 +196,9 @@ CameraControlImpl::TakePicture(CameraSize aSize, int32_t aRotation, const nsAStr
 }
 
 nsresult
-CameraControlImpl::StartRecording(CameraSize aSize, nsICameraStartRecordingCallback* onSuccess, nsICameraErrorCallback* onError)
+CameraControlImpl::StartRecording(nsIDOMDeviceStorage* aStorageArea, const nsAString& aFilename, nsICameraStartRecordingCallback* onSuccess, nsICameraErrorCallback* onError)
 {
-  nsCOMPtr<nsIRunnable> startRecordingTask = new StartRecordingTask(this, aSize, onSuccess, onError);
+  nsCOMPtr<nsIRunnable> startRecordingTask = new StartRecordingTask(this, aStorageArea, aFilename, onSuccess, onError);
   return mCameraThread->Dispatch(startRecordingTask, NS_DISPATCH_NORMAL);
 }
 
@@ -223,6 +223,13 @@ CameraControlImpl::StopPreview()
   mCameraThread->Dispatch(stopPreviewTask, NS_DISPATCH_NORMAL);
 }
 
+nsresult
+CameraControlImpl::GetPreviewStreamVideoMode(CameraRecordingOptions* aOptions, nsICameraPreviewStreamCallback* onSuccess, nsICameraErrorCallback* onError)
+{
+  nsCOMPtr<nsIRunnable> getPreviewStreamVideoModeTask = new GetPreviewStreamVideoModeTask(this, *aOptions, onSuccess, onError);
+  return mCameraThread->Dispatch(getPreviewStreamVideoModeTask, NS_DISPATCH_NORMAL);
+}
+
 bool
 CameraControlImpl::ReceiveFrame(void* aBuffer, ImageFormat aFormat, FrameBuilder aBuilder)
 {

dom/camera/CameraControlImpl.h

@@ -8,6 +8,7 @@
 #include "nsCOMPtr.h"
 #include "nsDOMFile.h"
 #include "DictionaryHelpers.h"
+#include "nsIDOMDeviceStorage.h"
 #include "nsIDOMCameraManager.h"
 #include "ICameraControl.h"
 #include "CameraCommon.h"
@@ -25,6 +26,7 @@ class StartRecordingTask;
 class StopRecordingTask;
 class SetParameterTask;
 class GetParameterTask;
+class GetPreviewStreamVideoModeTask;
 
 class DOMCameraPreview;
 
@@ -39,6 +41,7 @@ class CameraControlImpl : public ICameraControl
   friend class StopRecordingTask;
   friend class SetParameterTask;
   friend class GetParameterTask;
+  friend class GetPreviewStreamVideoModeTask;
 
 public:
   CameraControlImpl(uint32_t aCameraId, nsIThread* aCameraThread)
@@ -64,8 +67,9 @@ public:
   void StopPreview();
   nsresult AutoFocus(nsICameraAutoFocusCallback* onSuccess, nsICameraErrorCallback* onError);
   nsresult TakePicture(CameraSize aSize, int32_t aRotation, const nsAString& aFileFormat, CameraPosition aPosition, nsICameraTakePictureCallback* onSuccess, nsICameraErrorCallback* onError);
-  nsresult StartRecording(CameraSize aSize, nsICameraStartRecordingCallback* onSuccess, nsICameraErrorCallback* onError);
+  nsresult StartRecording(nsIDOMDeviceStorage* aStorageArea, const nsAString& aFilename, nsICameraStartRecordingCallback* onSuccess, nsICameraErrorCallback* onError);
   nsresult StopRecording();
+  nsresult GetPreviewStreamVideoMode(CameraRecordingOptions* aOptions, nsICameraPreviewStreamCallback* onSuccess, nsICameraErrorCallback* onError);
 
   nsresult Set(uint32_t aKey, const nsAString& aValue);
   nsresult Get(uint32_t aKey, nsAString& aValue);
@@ -111,6 +115,7 @@ protected:
   virtual nsresult StopRecordingImpl(StopRecordingTask* aStopRecording) = 0;
   virtual nsresult PushParametersImpl() = 0;
   virtual nsresult PullParametersImpl() = 0;
+  virtual nsresult GetPreviewStreamVideoModeImpl(GetPreviewStreamVideoModeTask* aGetPreviewStreamVideoMode) = 0;
 
   uint32_t            mCameraId;
   nsCOMPtr<nsIThread> mCameraThread;
@@ -347,9 +352,8 @@ public:
 class StartRecordingResult : public nsRunnable
 {
 public:
-  StartRecordingResult(nsIDOMMediaStream* aStream, nsICameraStartRecordingCallback* onSuccess)
-    : mStream(aStream)
-    , mOnSuccessCb(onSuccess)
+  StartRecordingResult(nsICameraStartRecordingCallback* onSuccess)
+    : mOnSuccessCb(onSuccess)
   { }
 
   virtual ~StartRecordingResult() { }
@@ -359,13 +363,12 @@ public:
     MOZ_ASSERT(NS_IsMainThread());
 
     if (mOnSuccessCb) {
-      mOnSuccessCb->HandleEvent(mStream);
+      mOnSuccessCb->HandleEvent();
     }
     return NS_OK;
   }
 
 protected:
-  nsCOMPtr<nsIDOMMediaStream> mStream;
   nsCOMPtr<nsICameraStartRecordingCallback> mOnSuccessCb;
 };
 
@@ -373,9 +376,10 @@ protected:
 class StartRecordingTask : public nsRunnable
 {
 public:
-  StartRecordingTask(CameraControlImpl* aCameraControl, CameraSize aSize, nsICameraStartRecordingCallback* onSuccess, nsICameraErrorCallback* onError)
-    : mSize(aSize)
-    , mCameraControl(aCameraControl)
+  StartRecordingTask(CameraControlImpl* aCameraControl, nsIDOMDeviceStorage* aStorageArea, const nsAString& aFilename, nsICameraStartRecordingCallback* onSuccess, nsICameraErrorCallback* onError)
+    : mCameraControl(aCameraControl)
+    , mStorageArea(aStorageArea)
+    , mFilename(aFilename)
     , mOnSuccessCb(onSuccess)
     , mOnErrorCb(onError)
   {
@@ -391,17 +395,21 @@ public:
   {
     DOM_CAMERA_LOGT("%s:%d\n", __func__, __LINE__);
     nsresult rv = mCameraControl->StartRecordingImpl(this);
-    DOM_CAMERA_LOGT("%s:%d\n", __func__, __LINE__);
+    DOM_CAMERA_LOGT("%s:%d : result %d\n", __func__, __LINE__, rv);
 
-    if (NS_FAILED(rv) && mOnErrorCb) {
+    if (NS_SUCCEEDED(rv)) {
+      if (mOnSuccessCb) {
+        rv = NS_DispatchToMainThread(new StartRecordingResult(mOnSuccessCb));
+      }
+    } else if (mOnErrorCb) {
       rv = NS_DispatchToMainThread(new CameraErrorResult(mOnErrorCb, NS_LITERAL_STRING("FAILURE")));
-      NS_ENSURE_SUCCESS(rv, rv);
     }
     return rv;
   }
 
-  CameraSize mSize;
   nsRefPtr<CameraControlImpl> mCameraControl;
+  nsCOMPtr<nsIDOMDeviceStorage> mStorageArea;
+  nsString mFilename;
   nsCOMPtr<nsICameraStartRecordingCallback> mOnSuccessCb;
   nsCOMPtr<nsICameraErrorCallback> mOnErrorCb;
 };
@@ -491,6 +499,67 @@ public:
   nsRefPtr<CameraControlImpl> mCameraControl;
 };
 
+// Return the resulting preview stream to JS.  Runs on the main thread.
+class GetPreviewStreamVideoModeResult : public nsRunnable
+{
+public:
+  GetPreviewStreamVideoModeResult(nsIDOMMediaStream* aStream, nsICameraPreviewStreamCallback* onSuccess)
+     : mStream(aStream)
+     , mOnSuccessCb(onSuccess)
+  {
+    DOM_CAMERA_LOGT("%s:%d : this=%p\n", __func__, __LINE__, this);
+  }
+
+  virtual ~GetPreviewStreamVideoModeResult()
+  {
+    DOM_CAMERA_LOGT("%s:%d : this=%p\n", __func__, __LINE__, this);
+  }
+
+  NS_IMETHOD Run()
+  {
+    MOZ_ASSERT(NS_IsMainThread());
+
+    if (mOnSuccessCb) {
+      mOnSuccessCb->HandleEvent(mStream);
+    }
+    return NS_OK;
+  }
+
+protected:
+  nsCOMPtr<nsIDOMMediaStream> mStream;
+  nsCOMPtr<nsICameraPreviewStreamCallback> mOnSuccessCb;
+};
+
+// Get the video mode preview stream.
+class GetPreviewStreamVideoModeTask : public nsRunnable
+{
+public:
+  GetPreviewStreamVideoModeTask(CameraControlImpl* aCameraControl, CameraRecordingOptions aOptions,  nsICameraPreviewStreamCallback* onSuccess, nsICameraErrorCallback* onError)
+    : mCameraControl(aCameraControl)
+    , mOptions(aOptions)
+    , mOnSuccessCb(onSuccess)
+    , mOnErrorCb(onError)
+  { }
+
+  NS_IMETHOD Run()
+  {
+    DOM_CAMERA_LOGI("%s:%d -- BEFORE IMPL\n", __func__, __LINE__);
+    nsresult rv = mCameraControl->GetPreviewStreamVideoModeImpl(this);
+    DOM_CAMERA_LOGI("%s:%d -- AFTER IMPL : rv = %d\n", __func__, __LINE__, rv);
+
+    if (NS_FAILED(rv) && mOnErrorCb) {
+      rv = NS_DispatchToMainThread(new CameraErrorResult(mOnErrorCb, NS_LITERAL_STRING("FAILURE")));
+      NS_ENSURE_SUCCESS(rv, rv);
+    }
+    return NS_OK;
+  }
+
+  nsRefPtr<CameraControlImpl> mCameraControl;
+  CameraRecordingOptions mOptions;
+  nsCOMPtr<nsICameraPreviewStreamCallback> mOnSuccessCb;
+  nsCOMPtr<nsICameraErrorCallback> mOnErrorCb;
+};
+
 } // namespace mozilla
 
 #endif // DOM_CAMERA_CAMERACONTROLIMPL_H

dom/camera/DOMCameraControl.cpp

@@ -9,6 +9,7 @@
 #include "nsThread.h"
 #include "mozilla/Services.h"
 #include "nsIObserverService.h"
+#include "nsIDOMDeviceStorage.h"
 #include "DOMCameraManager.h"
 #include "DOMCameraCapabilities.h"
 #include "DOMCameraControl.h"
@@ -218,16 +219,12 @@ nsDOMCameraControl::SetOnShutter(nsICameraShutterCallback* aOnShutter)
   return NS_ERROR_NOT_IMPLEMENTED;
 }
 
-/* void startRecording (in jsval aOptions, in nsICameraStartRecordingCallback onSuccess, [optional] in nsICameraErrorCallback onError); */
+/* [implicit_jscontext] void startRecording (in nsIDOMDeviceStorage storageArea, in DOMString filename, in nsICameraStartRecordingCallback onSuccess, [optional] in nsICameraErrorCallback onError); */
 NS_IMETHODIMP
-nsDOMCameraControl::StartRecording(const JS::Value& aOptions, nsICameraStartRecordingCallback* onSuccess, nsICameraErrorCallback* onError, JSContext* cx)
+nsDOMCameraControl::StartRecording(nsIDOMDeviceStorage* storageArea, const nsAString& filename, nsICameraStartRecordingCallback* onSuccess, nsICameraErrorCallback* onError, JSContext* cx)
 {
   NS_ENSURE_TRUE(onSuccess, NS_ERROR_INVALID_ARG);
 
-  CameraSize size;
-  nsresult rv = size.Init(cx, &aOptions);
-  NS_ENSURE_SUCCESS(rv, rv);
-
   nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
   if (!obs) {
     NS_WARNING("Could not get the Observer service for CameraControl::StartRecording.");
@@ -238,7 +235,7 @@ nsDOMCameraControl::StartRecording(const JS::Value& aOptions, nsICameraStartReco
                        "recording-device-events",
                        NS_LITERAL_STRING("starting").get());
 
-  return mCameraControl->StartRecording(size, onSuccess, onError);
+  return mCameraControl->StartRecording(storageArea, filename, onSuccess, onError);
 }
 
 /* void stopRecording (); */
@@ -316,6 +313,19 @@ nsDOMCameraControl::TakePicture(const JS::Value& aOptions, nsICameraTakePictureC
   return mCameraControl->TakePicture(size, options.rotation, options.fileFormat, pos, onSuccess, onError);
 }
 
+/* [implicit_jscontext] void GetPreviewStreamVideoMode (in jsval aOptions, in nsICameraPreviewStreamCallback onSuccess, [optional] in nsICameraErrorCallback onError); */
+NS_IMETHODIMP
+nsDOMCameraControl::GetPreviewStreamVideoMode(const JS::Value& aOptions, nsICameraPreviewStreamCallback* onSuccess, nsICameraErrorCallback* onError, JSContext* cx)
+{
+  NS_ENSURE_TRUE(onSuccess, NS_ERROR_INVALID_ARG);
+
+  CameraRecordingOptions options;
+  nsresult rv = options.Init(cx, &aOptions);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  return mCameraControl->GetPreviewStreamVideoMode(&options, onSuccess, onError);
+}
+
 class GetCameraResult : public nsRunnable
 {
 public:

dom/camera/GonkCameraControl.cpp

@@ -15,6 +15,10 @@
  */
 
 #include <string.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <libgen.h>
 #include "base/basictypes.h"
 #include "libcameraservice/CameraHardwareInterface.h"
 #include "camera/CameraParameters.h"
@@ -23,6 +27,8 @@
 #include "nsMemory.h"
 #include "jsapi.h"
 #include "nsThread.h"
+#include <media/MediaProfiles.h>
+#include "nsDirectoryServiceDefs.h" // for NS_GetSpecialDirectory
 #include "nsPrintfCString.h"
 #include "DOMCameraManager.h"
 #include "GonkCameraHwMgr.h"
@@ -547,19 +553,27 @@ nsGonkCameraControl::StartPreviewImpl(StartPreviewTask* aStartPreview)
 }
 
 nsresult
-nsGonkCameraControl::StopPreviewImpl(StopPreviewTask* aStopPreview)
+nsGonkCameraControl::StopPreviewInternal(bool aForced)
 {
   DOM_CAMERA_LOGI("%s: stopping preview\n", __func__);
 
   // StopPreview() is a synchronous call--it doesn't return
   // until the camera preview thread exits.
+  if (mDOMPreview) {
     GonkCameraHardware::StopPreview(mHwHandle);
-  mDOMPreview->Stopped();
+    mDOMPreview->Stopped(aForced);
     mDOMPreview = nullptr;
+  }
 
   return NS_OK;
 }
 
+nsresult
+nsGonkCameraControl::StopPreviewImpl(StopPreviewTask* aStopPreview)
+{
+  return StopPreviewInternal();
+}
+
 nsresult
 nsGonkCameraControl::AutoFocusImpl(AutoFocusTask* aAutoFocus)
 {
@@ -691,13 +705,71 @@ nsGonkCameraControl::PullParametersImpl()
 nsresult
 nsGonkCameraControl::StartRecordingImpl(StartRecordingTask* aStartRecording)
 {
-  return NS_ERROR_NOT_IMPLEMENTED;
+  mStartRecordingOnSuccessCb = aStartRecording->mOnSuccessCb;
+  mStartRecordingOnErrorCb = aStartRecording->mOnErrorCb;
+
+  /**
+   * We need to pull in the base path from aStartRecording->mStorageArea
+   * once that feature lands.  See bug 795201.
+   *
+   * For now, we just assume /sdcard/Movies.
+   *
+   * Also, the camera app needs to provide the file extension '.3gp' for now.
+   * See bug 795202.
+   */
+#if 1
+  nsCOMPtr<nsIFile> filename;
+  aStartRecording->mStorageArea->GetRootDirectory(getter_AddRefs(filename));
+  filename->Append(aStartRecording->mFilename);
+
+  nsAutoCString pathname;
+  filename->GetNativePath(pathname);
+#else
+  nsAutoCString pathname(NS_LITERAL_CSTRING("/sdcard/Movies/"));
+  nsAutoCString filename(NS_ConvertUTF16toUTF8(aStartRecording->mFilename));
+
+  // Make sure that the file name doesn't contain any directory components.
+  if (strcmp(filename.get(), basename(filename.get())) != 0) {
+    DOM_CAMERA_LOGE("Video filename '%s' is not valid\n", filename.get());
+    return NS_ERROR_INVALID_ARG;
+  }
+
+  pathname.Append(filename);
+#endif
+  DOM_CAMERA_LOGI("Video pathname is '%s'\n", pathname.get());
+  int fd = open(pathname.get(), O_RDWR | O_CREAT, 0644);
+  if (fd < 0) {
+    DOM_CAMERA_LOGE("Couldn't create file '%s' with error (%d) %s\n", pathname.get(), errno, strerror(errno));
+    return NS_ERROR_FAILURE;
+  }
+
+  if (SetupRecording(fd) != NS_OK) {
+    DOM_CAMERA_LOGE("SetupRecording() failed\n");
+    close(fd);
+    return NS_ERROR_FAILURE;
+  }
+  if (mRecorder->start() != OK) {
+    DOM_CAMERA_LOGE("mRecorder->start() failed\n");
+    close(fd);
+    return NS_ERROR_FAILURE;
+  }
+
+  // dispatch the callback
+  nsCOMPtr<nsIRunnable> startRecordingResult = new StartRecordingResult(mStartRecordingOnSuccessCb);
+  nsresult rv = NS_DispatchToMainThread(startRecordingResult);
+  if (NS_FAILED(rv)) {
+    DOM_CAMERA_LOGE("Failed to dispatch start recording result to main thread (%d)!", rv);
+  }
+  return NS_OK;
 }
 
 nsresult
 nsGonkCameraControl::StopRecordingImpl(StopRecordingTask* aStopRecording)
 {
-  return NS_ERROR_NOT_IMPLEMENTED;
+  mRecorder->stop();
+  delete mRecorder;
+  mRecorder = nullptr;
+  return NS_OK;
 }
 
 void
@@ -809,6 +881,152 @@ nsGonkCameraControl::SetPreviewSize(uint32_t aWidth, uint32_t aHeight)
   PushParameters();
 }
 
+nsresult
+nsGonkCameraControl::SetupVideoMode()
+{
+  // read preferences for camcorder
+  mMediaProfiles = MediaProfiles::getInstance();
+
+  /**
+   * Right now default to profile 3, which is 352x288 on Otoro.  In the
+   * future, allow the application to select a recording quality and
+   * configuration.
+   *
+   * See bug 795379.
+   */
+  int quality = 3;  // cif:352x288
+  camcorder_quality q = static_cast<camcorder_quality>(quality);
+  mDuration         = mMediaProfiles->getCamcorderProfileParamByName("duration",    (int)mCameraId, q);
+  mVideoFileFormat  = mMediaProfiles->getCamcorderProfileParamByName("file.format", (int)mCameraId, q);
+  mVideoCodec       = mMediaProfiles->getCamcorderProfileParamByName("vid.codec",   (int)mCameraId, q);
+  mVideoBitRate     = mMediaProfiles->getCamcorderProfileParamByName("vid.bps",     (int)mCameraId, q);
+  mVideoFrameRate   = mMediaProfiles->getCamcorderProfileParamByName("vid.fps",     (int)mCameraId, q);
+  mVideoFrameWidth  = mMediaProfiles->getCamcorderProfileParamByName("vid.width",   (int)mCameraId, q);
+  mVideoFrameHeight = mMediaProfiles->getCamcorderProfileParamByName("vid.height",  (int)mCameraId, q);
+  mAudioCodec       = mMediaProfiles->getCamcorderProfileParamByName("aud.codec",   (int)mCameraId, q);
+  mAudioBitRate     = mMediaProfiles->getCamcorderProfileParamByName("aud.bps",     (int)mCameraId, q);
+  mAudioSampleRate  = mMediaProfiles->getCamcorderProfileParamByName("aud.hz",      (int)mCameraId, q);
+  mAudioChannels    = mMediaProfiles->getCamcorderProfileParamByName("aud.ch",      (int)mCameraId, q);
+
+  if (mVideoFrameRate == -1) {
+    DOM_CAMERA_LOGE("Failed to get a valid frame rate!\n");
+    DOM_CAMERA_LOGE("Also got width=%d, height=%d\n", mVideoFrameWidth, mVideoFrameHeight);
+    return NS_ERROR_FAILURE;
+  }
+
+  PullParametersImpl();
+
+  // Configure camera video recording parameters.
+  const size_t SIZE = 256;
+  char buffer[SIZE];
+
+  /**
+   * Ignore the width and height settings from app, just use the one in profile.
+   * Eventually, will try to choose a profile which respects the settings from app.
+   * See bug 795330.
+   */
+  mParams.setPreviewSize(mVideoFrameWidth, mVideoFrameHeight);
+  mParams.setPreviewFrameRate(mVideoFrameRate);
+  snprintf(buffer, SIZE, "%dx%d", mVideoFrameWidth, mVideoFrameHeight);
+
+  /**
+   * "record-size" is probably deprecated in later ICS;
+   * might need to set "video-size" instead of "record-size".
+   * See bug 795332.
+   */
+  mParams.set("record-size", buffer);
+
+  /**
+   * If we want to enable picture-taking _while_ recording video, this sets the
+   * size of the captured picture.  For now, just set it to the same dimensions
+   * as the video we're recording; ideally, we should probably make sure it
+   * matches one of the supported picture sizes.
+   */
+  mParams.setPictureSize(mVideoFrameWidth, mVideoFrameHeight);
+
+  PushParametersImpl();
+  return NS_OK;
+}
+
+#ifndef CHECK_SETARG
+#define CHECK_SETARG(x)                 \
+  do {                                  \
+    if (x) {                            \
+      DOM_CAMERA_LOGE(#x " failed\n");  \
+      return NS_ERROR_INVALID_ARG;      \
+    }                                   \
+  } while(0)
+#endif
+
+nsresult
+nsGonkCameraControl::SetupRecording(int aFd)
+{
+  // choosing a size big enough to hold the params
+  const size_t SIZE = 256;
+  char buffer[SIZE];
+
+  mRecorder = new GonkRecorder();
+  CHECK_SETARG(mRecorder->init());
+
+  // set all the params
+  CHECK_SETARG(mRecorder->setCameraHandle((int32_t)mHwHandle));
+  CHECK_SETARG(mRecorder->setAudioSource(AUDIO_SOURCE_CAMCORDER));
+  CHECK_SETARG(mRecorder->setVideoSource(VIDEO_SOURCE_CAMERA));
+  CHECK_SETARG(mRecorder->setOutputFormat((output_format)mVideoFileFormat));
+  CHECK_SETARG(mRecorder->setVideoFrameRate(mVideoFrameRate));
+  CHECK_SETARG(mRecorder->setVideoSize(mVideoFrameWidth, mVideoFrameHeight));
+  snprintf(buffer, SIZE, "video-param-encoding-bitrate=%d", mVideoBitRate);
+  CHECK_SETARG(mRecorder->setParameters(String8(buffer)));
+  CHECK_SETARG(mRecorder->setVideoEncoder((video_encoder)mVideoCodec));
+  snprintf(buffer, SIZE, "audio-param-encoding-bitrate=%d", mAudioBitRate);
+  CHECK_SETARG(mRecorder->setParameters(String8(buffer)));
+  snprintf(buffer, SIZE, "audio-param-number-of-channels=%d", mAudioChannels);
+  CHECK_SETARG(mRecorder->setParameters(String8(buffer)));
+  snprintf(buffer, SIZE, "audio-param-sampling-rate=%d", mAudioSampleRate);
+  CHECK_SETARG(mRecorder->setParameters(String8(buffer)));
+  CHECK_SETARG(mRecorder->setAudioEncoder((audio_encoder)mAudioCodec));
+  // TODO: For now there is no limit on recording duration (See bug 795090)
+  CHECK_SETARG(mRecorder->setParameters(String8("max-duration=-1")));
+  // TODO: For now there is no limit on file size (See bug 795090)
+  CHECK_SETARG(mRecorder->setParameters(String8("max-filesize=-1")));
+  snprintf(buffer, SIZE, "video-param-rotation-angle-degrees=%d", mVideoRotation);
+  CHECK_SETARG(mRecorder->setParameters(String8(buffer)));
+
+  // recording API needs file descriptor of output file
+  CHECK_SETARG(mRecorder->setOutputFile(aFd, 0, 0));
+  CHECK_SETARG(mRecorder->prepare());
+  return NS_OK;
+}
+
+nsresult
+nsGonkCameraControl::GetPreviewStreamVideoModeImpl(GetPreviewStreamVideoModeTask* aGetPreviewStreamVideoMode)
+{
+  nsCOMPtr<GetPreviewStreamResult> getPreviewStreamResult = nullptr;
+
+  // stop any currently running preview
+  StopPreviewInternal(true /* forced */);
+
+  // copy the recording preview options
+  mVideoRotation = aGetPreviewStreamVideoMode->mOptions.rotation;
+  mVideoWidth = aGetPreviewStreamVideoMode->mOptions.width;
+  mVideoHeight = aGetPreviewStreamVideoMode->mOptions.height;
+  DOM_CAMERA_LOGI("recording preview format: %d x %d (w x h) (rotated %d degrees)\n", mVideoWidth, mVideoHeight, mVideoRotation);
+
+  // setup the video mode
+  nsresult rv = SetupVideoMode();
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // create and return new preview stream object
+  getPreviewStreamResult = new GetPreviewStreamResult(this, mVideoWidth, mVideoHeight, mVideoFrameRate, aGetPreviewStreamVideoMode->mOnSuccessCb);
+  rv = NS_DispatchToMainThread(getPreviewStreamResult);
+  if (NS_FAILED(rv)) {
+    NS_WARNING("Failed to dispatch GetPreviewStreamVideoMode() onSuccess callback to main thread!");
+    return rv;
+  }
+
+  return NS_OK;
+}
+
 // Gonk callback handlers.
 namespace mozilla {
 

dom/camera/GonkCameraControl.h

@@ -24,6 +24,7 @@
 #include "DOMCameraControl.h"
 #include "CameraControlImpl.h"
 #include "CameraCommon.h"
+#include "GonkRecorder.h"
 
 namespace mozilla {
 
@@ -47,6 +48,9 @@ public:
   void SetParameter(uint32_t aKey, const nsTArray<dom::CameraRegion>& aRegions);
   nsresult PushParameters();
 
+  nsresult SetupRecording(int aFd);
+  nsresult SetupVideoMode();
+
   void AutoFocusComplete(bool aSuccess);
   void TakePictureComplete(uint8_t* aData, uint32_t aLength);
 
@@ -56,12 +60,14 @@ protected:
   nsresult GetPreviewStreamImpl(GetPreviewStreamTask* aGetPreviewStream);
   nsresult StartPreviewImpl(StartPreviewTask* aStartPreview);
   nsresult StopPreviewImpl(StopPreviewTask* aStopPreview);
+  nsresult StopPreviewInternal(bool aForced = false);
   nsresult AutoFocusImpl(AutoFocusTask* aAutoFocus);
   nsresult TakePictureImpl(TakePictureTask* aTakePicture);
   nsresult StartRecordingImpl(StartRecordingTask* aStartRecording);
   nsresult StopRecordingImpl(StopRecordingTask* aStopRecording);
   nsresult PushParametersImpl();
   nsresult PullParametersImpl();
+  nsresult GetPreviewStreamVideoModeImpl(GetPreviewStreamVideoModeTask* aGetPreviewStreamVideoMode);
 
   void SetPreviewSize(uint32_t aWidth, uint32_t aHeight);
 
@@ -84,6 +90,27 @@ protected:
   uint32_t                  mFps;
   uint32_t                  mDiscardedFrameCount;
 
+  android::MediaProfiles*   mMediaProfiles;
+  android::GonkRecorder*    mRecorder;
+
+  PRUint32                  mVideoRotation;
+  PRUint32                  mVideoWidth;
+  PRUint32                  mVideoHeight;
+  nsString                  mVideoFile;
+
+  // camcorder profile settings for the desired quality level
+  int mDuration;        // max recording duration (ignored)
+  int mVideoFileFormat; // output file format
+  int mVideoCodec;      // video encoder
+  int mVideoBitRate;    // video bit rate
+  int mVideoFrameRate;  // video frame rate
+  int mVideoFrameWidth; // video frame width
+  int mVideoFrameHeight;// video frame height
+  int mAudioCodec;      // audio encoder
+  int mAudioBitRate;    // audio bit rate
+  int mAudioSampleRate; // audio sample rate
+  int mAudioChannels;   // number of audio channels
+
 private:
   nsGonkCameraControl(const nsGonkCameraControl&) MOZ_DELETE;
   nsGonkCameraControl& operator=(const nsGonkCameraControl&) MOZ_DELETE;

dom/camera/GonkCameraHwMgr.cpp

@@ -143,6 +143,34 @@ GonkCameraHardware::NotifyCallback(int32_t aMsgType, int32_t ext1, int32_t ext2,
   }
 }
 
+void
+GonkCameraHardware::DataCallbackTimestamp(nsecs_t aTimestamp, int32_t aMsgType, const sp<IMemory> &aDataPtr, void* aUser)
+{
+  DOM_CAMERA_LOGI("%s",__func__);
+  GonkCameraHardware* hw = GetHardware((uint32_t)aUser);
+  if (!hw) {
+    DOM_CAMERA_LOGE("%s:aUser = %d resolved to no camera hw\n", __func__, (uint32_t)aUser);
+    return;
+  }
+  if (hw->mClosing) {
+    return;
+  }
+
+  sp<GonkCameraListener> listener;
+  {
+    //TODO
+    //Mutex::Autolock _l(hw->mLock);
+    listener = hw->mListener;
+  }
+  if (listener.get()) {
+    DOM_CAMERA_LOGI("Listener registered, posting recording frame!");
+    listener->postDataTimestamp(aTimestamp, aMsgType, aDataPtr);
+  } else {
+    DOM_CAMERA_LOGW("No listener was set. Drop a recording frame.");
+    hw->mHardware->releaseRecordingFrame(aDataPtr);
+  }
+}
+
 void
 GonkCameraHardware::Init()
 {
@@ -162,7 +190,7 @@ GonkCameraHardware::Init()
   if (sHwHandle == 0) {
     sHwHandle = 1;  // don't use 0
   }
-  mHardware->setCallbacks(GonkCameraHardware::NotifyCallback, GonkCameraHardware::DataCallback, NULL, (void*)sHwHandle);
+  mHardware->setCallbacks(GonkCameraHardware::NotifyCallback, GonkCameraHardware::DataCallback, GonkCameraHardware::DataCallbackTimestamp, (void*)sHwHandle);
   mInitialized = true;
 }
 
@@ -314,3 +342,81 @@ GonkCameraHardware::StopPreview(uint32_t aHwHandle)
     hw->mHardware->stopPreview();
   }
 }
+
+int
+GonkCameraHardware::StartRecording(uint32_t aHwHandle)
+{
+  DOM_CAMERA_LOGI("%s: aHwHandle = %d\n", __func__, aHwHandle);
+  int rv = OK;
+  GonkCameraHardware* hw = GetHardware(aHwHandle);
+  if (!hw) {
+    return DEAD_OBJECT;
+  }
+
+  if (hw->mHardware->recordingEnabled()) {
+    return OK;
+  }
+
+  if (!hw->mHardware->previewEnabled()) {
+    DOM_CAMERA_LOGW("Preview was not enabled, enabling now!\n");
+    rv = StartPreview(aHwHandle);
+    if (rv != OK) {
+      return rv;
+    }
+  }
+
+  // start recording mode
+  hw->mHardware->enableMsgType(CAMERA_MSG_VIDEO_FRAME);
+  DOM_CAMERA_LOGI("Calling hw->startRecording\n");
+  rv = hw->mHardware->startRecording();
+  if (rv != OK) {
+    DOM_CAMERA_LOGE("mHardware->startRecording() failed with status %d", rv);
+  }
+  return rv;
+}
+
+int
+GonkCameraHardware::StopRecording(uint32_t aHwHandle)
+{
+  DOM_CAMERA_LOGI("%s: aHwHandle = %d\n", __func__, aHwHandle);
+  GonkCameraHardware* hw = GetHardware(aHwHandle);
+  if (!hw) {
+    return DEAD_OBJECT;
+  }
+
+  hw->mHardware->disableMsgType(CAMERA_MSG_VIDEO_FRAME);
+  hw->mHardware->stopRecording();
+  return OK;
+}
+
+int
+GonkCameraHardware::SetListener(uint32_t aHwHandle, const sp<GonkCameraListener>& aListener)
+{
+  GonkCameraHardware* hw = GetHardware(aHwHandle);
+  if (!hw) {
+    return DEAD_OBJECT;
+  }
+
+  hw->mListener = aListener;
+  return OK;
+}
+
+void
+GonkCameraHardware::ReleaseRecordingFrame(uint32_t aHwHandle, const sp<IMemory>& aFrame)
+{
+  GonkCameraHardware* hw = GetHardware(aHwHandle);
+  if (hw) {
+    hw->mHardware->releaseRecordingFrame(aFrame);
+  }
+}
+
+int
+GonkCameraHardware::StoreMetaDataInBuffers(uint32_t aHwHandle, bool aEnabled)
+{
+  GonkCameraHardware* hw = GetHardware(aHwHandle);
+  if (!hw) {
+    return DEAD_OBJECT;
+  }
+
+  return hw->mHardware->storeMetaDataInBuffers(aEnabled);
+}

dom/camera/GonkCameraHwMgr.h

@@ -20,6 +20,8 @@
 #include "libcameraservice/CameraHardwareInterface.h"
 #include "binder/IMemory.h"
 #include "mozilla/ReentrantMonitor.h"
+#include "GonkCameraListener.h"
+#include <utils/threads.h>
 
 #include "GonkCameraControl.h"
 #include "CameraCommon.h"
@@ -46,6 +48,7 @@ protected:
 
   static void     DataCallback(int32_t aMsgType, const sp<IMemory> &aDataPtr, camera_frame_metadata_t* aMetadata, void* aUser);
   static void     NotifyCallback(int32_t aMsgType, int32_t ext1, int32_t ext2, void* aUser);
+  static void     DataCallbackTimestamp(nsecs_t aTimestamp, int32_t aMsgType, const sp<IMemory>& aDataPtr, void* aUser);
 
 public:
   virtual void    OnNewFrame() MOZ_OVERRIDE;
@@ -60,6 +63,11 @@ public:
   static void     StopPreview(uint32_t aHwHandle);
   static int      PushParameters(uint32_t aHwHandle, const CameraParameters& aParams);
   static void     PullParameters(uint32_t aHwHandle, CameraParameters& aParams);
+  static int      StartRecording(uint32_t aHwHandle);
+  static int      StopRecording(uint32_t aHwHandle);
+  static int      SetListener(uint32_t aHwHandle, const sp<GonkCameraListener>& aListener);
+  static void     ReleaseRecordingFrame(uint32_t aHwHandle, const sp<IMemory>& aFrame);
+  static int      StoreMetaDataInBuffers(uint32_t aHwHandle, bool aEnabled);
 
 protected:
   static GonkCameraHardware*    sHw;
@@ -93,6 +101,7 @@ protected:
   struct timespec               mStart;
   struct timespec               mAutoFocusStart;
 #endif
+  sp<GonkCameraListener>        mListener;
   bool                          mInitialized;
 
   bool IsInitialized()

dom/camera/GonkCameraListener.h

@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef GONK_CAMERA_LISTENER_H
+#define GONK_CAMERA_LISTENER_H
+
+#include <utils/Timers.h>
+#include "libcameraservice/CameraHardwareInterface.h"
+
+namespace android {
+
+// ref-counted object for callbacks
+class GonkCameraListener: virtual public RefBase
+{
+public:
+    virtual void notify(int32_t msgType, int32_t ext1, int32_t ext2) = 0;
+    virtual void postData(int32_t msgType, const sp<IMemory>& dataPtr,
+                          camera_frame_metadata_t *metadata) = 0;
+    virtual void postDataTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr) = 0;
+};
+
+}; // namespace android
+
+#endif

dom/camera/GonkCameraSource.cpp

@@ -0,0 +1,733 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <base/basictypes.h>
+#include "nsDebug.h"
+#define DOM_CAMERA_LOG_LEVEL        3
+#include "CameraCommon.h"
+#define LOGD DOM_CAMERA_LOGA
+#define LOGV DOM_CAMERA_LOGI
+#define LOGI DOM_CAMERA_LOGI
+#define LOGW DOM_CAMERA_LOGW
+#define LOGE DOM_CAMERA_LOGE
+
+#include <OMX_Component.h>
+#include "GonkCameraSource.h"
+#include "GonkCameraListener.h"
+#include "GonkCameraHwMgr.h"
+#include <media/stagefright/MediaDebug.h>
+#include <media/stagefright/MediaDefs.h>
+#include <media/stagefright/MediaErrors.h>
+#include <media/stagefright/MetaData.h>
+#include <utils/String8.h>
+#include <cutils/properties.h>
+
+using namespace mozilla;
+namespace android {
+
+static const int64_t CAMERA_SOURCE_TIMEOUT_NS = 3000000000LL;
+
+struct GonkCameraSourceListener : public GonkCameraListener {
+    GonkCameraSourceListener(const sp<GonkCameraSource> &source);
+
+    virtual void notify(int32_t msgType, int32_t ext1, int32_t ext2);
+    virtual void postData(int32_t msgType, const sp<IMemory> &dataPtr,
+                          camera_frame_metadata_t *metadata);
+
+    virtual void postDataTimestamp(
+            nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr);
+
+protected:
+    virtual ~GonkCameraSourceListener();
+
+private:
+    wp<GonkCameraSource> mSource;
+
+    GonkCameraSourceListener(const GonkCameraSourceListener &);
+    GonkCameraSourceListener &operator=(const GonkCameraSourceListener &);
+};
+
+GonkCameraSourceListener::GonkCameraSourceListener(const sp<GonkCameraSource> &source)
+    : mSource(source) {
+}
+
+GonkCameraSourceListener::~GonkCameraSourceListener() {
+}
+
+void GonkCameraSourceListener::notify(int32_t msgType, int32_t ext1, int32_t ext2) {
+    LOGV("notify(%d, %d, %d)", msgType, ext1, ext2);
+}
+
+void GonkCameraSourceListener::postData(int32_t msgType, const sp<IMemory> &dataPtr,
+                                    camera_frame_metadata_t *metadata) {
+    LOGV("postData(%d, ptr:%p, size:%d)",
+         msgType, dataPtr->pointer(), dataPtr->size());
+
+    sp<GonkCameraSource> source = mSource.promote();
+    if (source.get() != NULL) {
+        source->dataCallback(msgType, dataPtr);
+    }
+}
+
+void GonkCameraSourceListener::postDataTimestamp(
+        nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr) {
+
+    sp<GonkCameraSource> source = mSource.promote();
+    if (source.get() != NULL) {
+        source->dataCallbackTimestamp(timestamp/1000, msgType, dataPtr);
+    }
+}
+
+static int32_t getColorFormat(const char* colorFormat) {
+    return OMX_COLOR_FormatYUV420SemiPlanar;
+
+    if (!strcmp(colorFormat, CameraParameters::PIXEL_FORMAT_YUV420P)) {
+       return OMX_COLOR_FormatYUV420Planar;
+    }
+
+    if (!strcmp(colorFormat, CameraParameters::PIXEL_FORMAT_YUV422SP)) {
+       return OMX_COLOR_FormatYUV422SemiPlanar;
+    }
+
+    if (!strcmp(colorFormat, CameraParameters::PIXEL_FORMAT_YUV420SP)) {
+        return OMX_COLOR_FormatYUV420SemiPlanar;
+    }
+
+    if (!strcmp(colorFormat, CameraParameters::PIXEL_FORMAT_YUV422I)) {
+        return OMX_COLOR_FormatYCbYCr;
+    }
+
+    if (!strcmp(colorFormat, CameraParameters::PIXEL_FORMAT_RGB565)) {
+       return OMX_COLOR_Format16bitRGB565;
+    }
+
+    if (!strcmp(colorFormat, "OMX_TI_COLOR_FormatYUV420PackedSemiPlanar")) {
+       return OMX_TI_COLOR_FormatYUV420PackedSemiPlanar;
+    }
+
+    LOGE("Uknown color format (%s), please add it to "
+         "GonkCameraSource::getColorFormat", colorFormat);
+
+    CHECK_EQ(0, "Unknown color format");
+}
+
+GonkCameraSource *GonkCameraSource::Create(
+    int32_t cameraHandle,
+    Size videoSize,
+    int32_t frameRate,
+    bool storeMetaDataInVideoBuffers) {
+
+    GonkCameraSource *source = new GonkCameraSource(cameraHandle,
+                    videoSize, frameRate,
+                    storeMetaDataInVideoBuffers);
+    return source;
+}
+
+GonkCameraSource::GonkCameraSource(
+    int32_t cameraHandle,
+    Size videoSize,
+    int32_t frameRate,
+    bool storeMetaDataInVideoBuffers)
+    : mCameraFlags(0),
+      mVideoFrameRate(-1),
+      mNumFramesReceived(0),
+      mLastFrameTimestampUs(0),
+      mStarted(false),
+      mNumFramesEncoded(0),
+      mTimeBetweenFrameCaptureUs(0),
+      mFirstFrameTimeUs(0),
+      mNumFramesDropped(0),
+      mNumGlitches(0),
+      mGlitchDurationThresholdUs(200000),
+      mCollectStats(false) {
+    mVideoSize.width  = -1;
+    mVideoSize.height = -1;
+
+    mCameraHandle = cameraHandle;
+
+    mInitCheck = init(
+                    videoSize, frameRate,
+                    storeMetaDataInVideoBuffers);
+    if (mInitCheck != OK) releaseCamera();
+}
+
+status_t GonkCameraSource::initCheck() const {
+    return mInitCheck;
+}
+
+//TODO: Do we need to reimplement isCameraAvailable?
+
+/*
+ * Check to see whether the requested video width and height is one
+ * of the supported sizes.
+ * @param width the video frame width in pixels
+ * @param height the video frame height in pixels
+ * @param suppportedSizes the vector of sizes that we check against
+ * @return true if the dimension (width and height) is supported.
+ */
+static bool isVideoSizeSupported(
+    int32_t width, int32_t height,
+    const Vector<Size>& supportedSizes) {
+
+    LOGV("isVideoSizeSupported");
+    for (size_t i = 0; i < supportedSizes.size(); ++i) {
+        if (width  == supportedSizes[i].width &&
+            height == supportedSizes[i].height) {
+            return true;
+        }
+    }
+    return false;
+}
+
+/*
+ * If the preview and video output is separate, we only set the
+ * the video size, and applications should set the preview size
+ * to some proper value, and the recording framework will not
+ * change the preview size; otherwise, if the video and preview
+ * output is the same, we need to set the preview to be the same
+ * as the requested video size.
+ *
+ */
+/*
+ * Query the camera to retrieve the supported video frame sizes
+ * and also to see whether CameraParameters::setVideoSize()
+ * is supported or not.
+ * @param params CameraParameters to retrieve the information
+ * @@param isSetVideoSizeSupported retunrs whether method
+ *      CameraParameters::setVideoSize() is supported or not.
+ * @param sizes returns the vector of Size objects for the
+ *      supported video frame sizes advertised by the camera.
+ */
+static void getSupportedVideoSizes(
+    const CameraParameters& params,
+    bool *isSetVideoSizeSupported,
+    Vector<Size>& sizes) {
+
+    *isSetVideoSizeSupported = true;
+    params.getSupportedVideoSizes(sizes);
+    if (sizes.size() == 0) {
+        LOGD("Camera does not support setVideoSize()");
+        params.getSupportedPreviewSizes(sizes);
+        *isSetVideoSizeSupported = false;
+    }
+}
+
+/*
+ * Check whether the camera has the supported color format
+ * @param params CameraParameters to retrieve the information
+ * @return OK if no error.
+ */
+status_t GonkCameraSource::isCameraColorFormatSupported(
+        const CameraParameters& params) {
+    mColorFormat = getColorFormat(params.get(
+            CameraParameters::KEY_VIDEO_FRAME_FORMAT));
+    if (mColorFormat == -1) {
+        return BAD_VALUE;
+    }
+    return OK;
+}
+
+/*
+ * Configure the camera to use the requested video size
+ * (width and height) and/or frame rate. If both width and
+ * height are -1, configuration on the video size is skipped.
+ * if frameRate is -1, configuration on the frame rate
+ * is skipped. Skipping the configuration allows one to
+ * use the current camera setting without the need to
+ * actually know the specific values (see Create() method).
+ *
+ * @param params the CameraParameters to be configured
+ * @param width the target video frame width in pixels
+ * @param height the target video frame height in pixels
+ * @param frameRate the target frame rate in frames per second.
+ * @return OK if no error.
+ */
+status_t GonkCameraSource::configureCamera(
+        CameraParameters* params,
+        int32_t width, int32_t height,
+        int32_t frameRate) {
+    LOGV("configureCamera");
+    Vector<Size> sizes;
+    bool isSetVideoSizeSupportedByCamera = true;
+    getSupportedVideoSizes(*params, &isSetVideoSizeSupportedByCamera, sizes);
+    bool isCameraParamChanged = false;
+    if (width != -1 && height != -1) {
+        if (!isVideoSizeSupported(width, height, sizes)) {
+            LOGE("Video dimension (%dx%d) is unsupported", width, height);
+            return BAD_VALUE;
+        }
+        if (isSetVideoSizeSupportedByCamera) {
+            params->setVideoSize(width, height);
+        } else {
+            params->setPreviewSize(width, height);
+        }
+        isCameraParamChanged = true;
+    } else if ((width == -1 && height != -1) ||
+               (width != -1 && height == -1)) {
+        // If one and only one of the width and height is -1
+        // we reject such a request.
+        LOGE("Requested video size (%dx%d) is not supported", width, height);
+        return BAD_VALUE;
+    } else {  // width == -1 && height == -1
+        // Do not configure the camera.
+        // Use the current width and height value setting from the camera.
+    }
+
+    if (frameRate != -1) {
+        CHECK(frameRate > 0 && frameRate <= 120);
+        const char* supportedFrameRates =
+                params->get(CameraParameters::KEY_SUPPORTED_PREVIEW_FRAME_RATES);
+        CHECK(supportedFrameRates != NULL);
+        LOGV("Supported frame rates: %s", supportedFrameRates);
+        char buf[4];
+        snprintf(buf, 4, "%d", frameRate);
+        if (strstr(supportedFrameRates, buf) == NULL) {
+            LOGE("Requested frame rate (%d) is not supported: %s",
+                frameRate, supportedFrameRates);
+            return BAD_VALUE;
+        }
+
+        // The frame rate is supported, set the camera to the requested value.
+        params->setPreviewFrameRate(frameRate);
+        isCameraParamChanged = true;
+    } else {  // frameRate == -1
+        // Do not configure the camera.
+        // Use the current frame rate value setting from the camera
+    }
+
+    if (isCameraParamChanged) {
+        // Either frame rate or frame size needs to be changed.
+        if (OK != GonkCameraHardware::PushParameters(mCameraHandle,*params)) {
+            LOGE("Could not change settings."
+                 " Someone else is using camera ?");
+            return -EBUSY;
+        }
+    }
+    return OK;
+}
+
+/*
+ * Check whether the requested video frame size
+ * has been successfully configured or not. If both width and height
+ * are -1, check on the current width and height value setting
+ * is performed.
+ *
+ * @param params CameraParameters to retrieve the information
+ * @param the target video frame width in pixels to check against
+ * @param the target video frame height in pixels to check against
+ * @return OK if no error
+ */
+status_t GonkCameraSource::checkVideoSize(
+        const CameraParameters& params,
+        int32_t width, int32_t height) {
+
+    LOGV("checkVideoSize");
+    // The actual video size is the same as the preview size
+    // if the camera hal does not support separate video and
+    // preview output. In this case, we retrieve the video
+    // size from preview.
+    int32_t frameWidthActual = -1;
+    int32_t frameHeightActual = -1;
+    Vector<Size> sizes;
+    params.getSupportedVideoSizes(sizes);
+    if (sizes.size() == 0) {
+        // video size is the same as preview size
+        params.getPreviewSize(&frameWidthActual, &frameHeightActual);
+    } else {
+        // video size may not be the same as preview
+        params.getVideoSize(&frameWidthActual, &frameHeightActual);
+    }
+    if (frameWidthActual < 0 || frameHeightActual < 0) {
+        LOGE("Failed to retrieve video frame size (%dx%d)",
+                frameWidthActual, frameHeightActual);
+        return UNKNOWN_ERROR;
+    }
+
+    // Check the actual video frame size against the target/requested
+    // video frame size.
+    if (width != -1 && height != -1) {
+        if (frameWidthActual != width || frameHeightActual != height) {
+            LOGE("Failed to set video frame size to %dx%d. "
+                    "The actual video size is %dx%d ", width, height,
+                    frameWidthActual, frameHeightActual);
+            return UNKNOWN_ERROR;
+        }
+    }
+
+    // Good now.
+    mVideoSize.width = frameWidthActual;
+    mVideoSize.height = frameHeightActual;
+    return OK;
+}
+
+/*
+ * Check the requested frame rate has been successfully configured or not.
+ * If the target frameRate is -1, check on the current frame rate value
+ * setting is performed.
+ *
+ * @param params CameraParameters to retrieve the information
+ * @param the target video frame rate to check against
+ * @return OK if no error.
+ */
+status_t GonkCameraSource::checkFrameRate(
+        const CameraParameters& params,
+        int32_t frameRate) {
+
+    LOGV("checkFrameRate");
+    int32_t frameRateActual = params.getPreviewFrameRate();
+    if (frameRateActual < 0) {
+        LOGE("Failed to retrieve preview frame rate (%d)", frameRateActual);
+        return UNKNOWN_ERROR;
+    }
+
+    // Check the actual video frame rate against the target/requested
+    // video frame rate.
+    if (frameRate != -1 && (frameRateActual - frameRate) != 0) {
+        LOGE("Failed to set preview frame rate to %d fps. The actual "
+                "frame rate is %d", frameRate, frameRateActual);
+        return UNKNOWN_ERROR;
+    }
+
+    // Good now.
+    mVideoFrameRate = frameRateActual;
+    return OK;
+}
+
+/*
+ * Initialize the CameraSource to so that it becomes
+ * ready for providing the video input streams as requested.
+ * @param camera the camera object used for the video source
+ * @param cameraId if camera == 0, use camera with this id
+ *      as the video source
+ * @param videoSize the target video frame size. If both
+ *      width and height in videoSize is -1, use the current
+ *      width and heigth settings by the camera
+ * @param frameRate the target frame rate in frames per second.
+ *      if it is -1, use the current camera frame rate setting.
+ * @param storeMetaDataInVideoBuffers request to store meta
+ *      data or real YUV data in video buffers. Request to
+ *      store meta data in video buffers may not be honored
+ *      if the source does not support this feature.
+ *
+ * @return OK if no error.
+ */
+status_t GonkCameraSource::init(
+        Size videoSize,
+        int32_t frameRate,
+        bool storeMetaDataInVideoBuffers) {
+
+    LOGV("init");
+    status_t err = OK;
+    //TODO: need to do something here to check the sanity of camera
+
+    CameraParameters params;
+    GonkCameraHardware::PullParameters(mCameraHandle, params);
+    if ((err = isCameraColorFormatSupported(params)) != OK) {
+        return err;
+    }
+
+    // Set the camera to use the requested video frame size
+    // and/or frame rate.
+    if ((err = configureCamera(&params,
+                    videoSize.width, videoSize.height,
+                    frameRate))) {
+        return err;
+    }
+
+    // Check on video frame size and frame rate.
+    CameraParameters newCameraParams;
+    GonkCameraHardware::PullParameters(mCameraHandle, newCameraParams);
+    if ((err = checkVideoSize(newCameraParams,
+                videoSize.width, videoSize.height)) != OK) {
+        return err;
+    }
+    if ((err = checkFrameRate(newCameraParams, frameRate)) != OK) {
+        return err;
+    }
+
+    // By default, do not store metadata in video buffers
+    mIsMetaDataStoredInVideoBuffers = false;
+    GonkCameraHardware::StoreMetaDataInBuffers(mCameraHandle, false);
+    if (storeMetaDataInVideoBuffers) {
+        if (OK == GonkCameraHardware::StoreMetaDataInBuffers(mCameraHandle, true)) {
+            mIsMetaDataStoredInVideoBuffers = true;
+        }
+    }
+
+    const char *hfr_str = params.get("video-hfr");
+    int32_t hfr = -1;
+    if ( hfr_str != NULL ) {
+      hfr = atoi(hfr_str);
+    }
+    if(hfr < 0) {
+      LOGW("Invalid hfr value(%d) set from app. Disabling HFR.", hfr);
+      hfr = 0;
+    }
+
+    int64_t glitchDurationUs = (1000000LL / mVideoFrameRate);
+    if (glitchDurationUs > mGlitchDurationThresholdUs) {
+        mGlitchDurationThresholdUs = glitchDurationUs;
+    }
+
+    const char * k3dFrameArrangement = "3d-frame-format";
+    const char * arrangement = params.get(k3dFrameArrangement);
+    // XXX: just assume left/right for now since that's all the camera supports
+    bool want3D = (arrangement != NULL && !strcmp("left-right", arrangement));
+
+    // XXX: query camera for the stride and slice height
+    // when the capability becomes available.
+    mMeta = new MetaData;
+    mMeta->setCString(kKeyMIMEType,  MEDIA_MIMETYPE_VIDEO_RAW);
+    mMeta->setInt32(kKeyColorFormat, mColorFormat);
+    mMeta->setInt32(kKeyWidth,       mVideoSize.width);
+    mMeta->setInt32(kKeyHeight,      mVideoSize.height);
+    mMeta->setInt32(kKeyStride,      mVideoSize.width);
+    mMeta->setInt32(kKeySliceHeight, mVideoSize.height);
+    mMeta->setInt32(kKeyFrameRate,   mVideoFrameRate);
+
+    return OK;
+}
+
+GonkCameraSource::~GonkCameraSource() {
+    if (mStarted) {
+        stop();
+    } else if (mInitCheck == OK) {
+        // Camera is initialized but because start() is never called,
+        // the lock on Camera is never released(). This makes sure
+        // Camera's lock is released in this case.
+        // TODO: Don't think I need to do this
+        releaseCamera();
+    }
+}
+
+void GonkCameraSource::startCameraRecording() {
+    LOGV("startCameraRecording");
+    CHECK_EQ(OK, GonkCameraHardware::StartRecording(mCameraHandle));
+}
+
+status_t GonkCameraSource::start(MetaData *meta) {
+    LOGV("start");
+    CHECK(!mStarted);
+    if (mInitCheck != OK) {
+        LOGE("GonkCameraSource is not initialized yet");
+        return mInitCheck;
+    }
+
+    char value[PROPERTY_VALUE_MAX];
+    if (property_get("media.stagefright.record-stats", value, NULL)
+        && (!strcmp(value, "1") || !strcasecmp(value, "true"))) {
+        mCollectStats = true;
+    }
+
+    mStartTimeUs = 0;
+    int64_t startTimeUs;
+    if (meta && meta->findInt64(kKeyTime, &startTimeUs)) {
+        LOGV("Metadata enabled, startime: %lld us", startTimeUs);
+        mStartTimeUs = startTimeUs;
+    }
+
+    // Register a listener with GonkCameraHardware so that we can get callbacks
+    GonkCameraHardware::SetListener(mCameraHandle, new GonkCameraSourceListener(this));
+
+    startCameraRecording();
+
+    mStarted = true;
+    return OK;
+}
+
+void GonkCameraSource::stopCameraRecording() {
+    LOGV("stopCameraRecording");
+    GonkCameraHardware::StopRecording(mCameraHandle);
+}
+
+void GonkCameraSource::releaseCamera() {
+    LOGV("releaseCamera");
+}
+
+status_t GonkCameraSource::stop() {
+    LOGV("stop: E");
+    Mutex::Autolock autoLock(mLock);
+    mStarted = false;
+    mFrameAvailableCondition.signal();
+
+    releaseQueuedFrames();
+    while (!mFramesBeingEncoded.empty()) {
+        if (NO_ERROR !=
+            mFrameCompleteCondition.waitRelative(mLock,
+                    mTimeBetweenFrameCaptureUs * 1000LL + CAMERA_SOURCE_TIMEOUT_NS)) {
+            LOGW("Timed out waiting for outstanding frames being encoded: %d",
+                mFramesBeingEncoded.size());
+        }
+    }
+    LOGV("Calling stopCameraRecording");
+    stopCameraRecording();
+    releaseCamera();
+
+    if (mCollectStats) {
+        LOGI("Frames received/encoded/dropped: %d/%d/%d in %lld us",
+                mNumFramesReceived, mNumFramesEncoded, mNumFramesDropped,
+                mLastFrameTimestampUs - mFirstFrameTimeUs);
+    }
+
+    if (mNumGlitches > 0) {
+        LOGW("%d long delays between neighboring video frames", mNumGlitches);
+    }
+
+    CHECK_EQ(mNumFramesReceived, mNumFramesEncoded + mNumFramesDropped);
+    LOGV("stop: X");
+    return OK;
+}
+
+void GonkCameraSource::releaseRecordingFrame(const sp<IMemory>& frame) {
+    LOGV("releaseRecordingFrame");
+    GonkCameraHardware::ReleaseRecordingFrame(mCameraHandle, frame);
+}
+
+void GonkCameraSource::releaseQueuedFrames() {
+    List<sp<IMemory> >::iterator it;
+    while (!mFramesReceived.empty()) {
+        it = mFramesReceived.begin();
+        releaseRecordingFrame(*it);
+        mFramesReceived.erase(it);
+        ++mNumFramesDropped;
+    }
+}
+
+sp<MetaData> GonkCameraSource::getFormat() {
+    return mMeta;
+}
+
+void GonkCameraSource::releaseOneRecordingFrame(const sp<IMemory>& frame) {
+    releaseRecordingFrame(frame);
+}
+
+void GonkCameraSource::signalBufferReturned(MediaBuffer *buffer) {
+    LOGV("signalBufferReturned: %p", buffer->data());
+    Mutex::Autolock autoLock(mLock);
+    for (List<sp<IMemory> >::iterator it = mFramesBeingEncoded.begin();
+         it != mFramesBeingEncoded.end(); ++it) {
+        if ((*it)->pointer() ==  buffer->data()) {
+            releaseOneRecordingFrame((*it));
+            mFramesBeingEncoded.erase(it);
+            ++mNumFramesEncoded;
+            buffer->setObserver(0);
+            buffer->release();
+            mFrameCompleteCondition.signal();
+            return;
+        }
+    }
+    CHECK_EQ(0, "signalBufferReturned: bogus buffer");
+}
+
+status_t GonkCameraSource::read(
+        MediaBuffer **buffer, const ReadOptions *options) {
+    LOGV("read");
+
+    *buffer = NULL;
+
+    int64_t seekTimeUs;
+    ReadOptions::SeekMode mode;
+    if (options && options->getSeekTo(&seekTimeUs, &mode)) {
+        return ERROR_UNSUPPORTED;
+    }
+
+    sp<IMemory> frame;
+    int64_t frameTime;
+
+    {
+        Mutex::Autolock autoLock(mLock);
+        while (mStarted && mFramesReceived.empty()) {
+            if (NO_ERROR !=
+                mFrameAvailableCondition.waitRelative(mLock,
+                    mTimeBetweenFrameCaptureUs * 1000LL + CAMERA_SOURCE_TIMEOUT_NS)) {
+                //TODO: check sanity of camera?
+                LOGW("Timed out waiting for incoming camera video frames: %lld us",
+                    mLastFrameTimestampUs);
+            }
+        }
+        if (!mStarted) {
+            return OK;
+        }
+        frame = *mFramesReceived.begin();
+        mFramesReceived.erase(mFramesReceived.begin());
+
+        frameTime = *mFrameTimes.begin();
+        mFrameTimes.erase(mFrameTimes.begin());
+        mFramesBeingEncoded.push_back(frame);
+        *buffer = new MediaBuffer(frame->pointer(), frame->size());
+        (*buffer)->setObserver(this);
+        (*buffer)->add_ref();
+        (*buffer)->meta_data()->setInt64(kKeyTime, frameTime);
+    }
+    return OK;
+}
+
+void GonkCameraSource::dataCallbackTimestamp(int64_t timestampUs,
+        int32_t msgType, const sp<IMemory> &data) {
+    LOGV("dataCallbackTimestamp: timestamp %lld us", timestampUs);
+    //LOGV("dataCallbackTimestamp: data %x size %d", data->pointer(), data->size());
+    Mutex::Autolock autoLock(mLock);
+    if (!mStarted || (mNumFramesReceived == 0 && timestampUs < mStartTimeUs)) {
+        LOGV("Drop frame at %lld/%lld us", timestampUs, mStartTimeUs);
+        releaseOneRecordingFrame(data);
+        return;
+    }
+
+    if (mNumFramesReceived > 0) {
+        CHECK(timestampUs > mLastFrameTimestampUs);
+        if (timestampUs - mLastFrameTimestampUs > mGlitchDurationThresholdUs) {
+            ++mNumGlitches;
+        }
+    }
+
+    // May need to skip frame or modify timestamp. Currently implemented
+    // by the subclass GonkCameraSourceTimeLapse.
+    if (skipCurrentFrame(timestampUs)) {
+        releaseOneRecordingFrame(data);
+        return;
+    }
+
+    mLastFrameTimestampUs = timestampUs;
+    if (mNumFramesReceived == 0) {
+        mFirstFrameTimeUs = timestampUs;
+        // Initial delay
+        if (mStartTimeUs > 0) {
+            if (timestampUs < mStartTimeUs) {
+                // Frame was captured before recording was started
+                // Drop it without updating the statistical data.
+                releaseOneRecordingFrame(data);
+                return;
+            }
+            mStartTimeUs = timestampUs - mStartTimeUs;
+        }
+    }
+    ++mNumFramesReceived;
+
+    CHECK(data != NULL && data->size() > 0);
+    mFramesReceived.push_back(data);
+    int64_t timeUs = mStartTimeUs + (timestampUs - mFirstFrameTimeUs);
+    mFrameTimes.push_back(timeUs);
+    LOGV("initial delay: %lld, current time stamp: %lld",
+        mStartTimeUs, timeUs);
+    mFrameAvailableCondition.signal();
+}
+
+bool GonkCameraSource::isMetaDataStoredInVideoBuffers() const {
+    LOGV("isMetaDataStoredInVideoBuffers");
+    return mIsMetaDataStoredInVideoBuffers;
+}
+
+} // namespace android

dom/camera/GonkCameraSource.h

@@ -0,0 +1,161 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef GONK_CAMERA_SOURCE_H_
+
+#define GONK_CAMERA_SOURCE_H_
+
+#include <media/stagefright/MediaBuffer.h>
+#include <media/stagefright/MediaSource.h>
+#include <camera/CameraParameters.h>
+#include <utils/List.h>
+#include <utils/RefBase.h>
+#include <utils/threads.h>
+
+namespace android {
+
+class IMemory;
+class GonkCameraSourceListener;
+
+class GonkCameraSource : public MediaSource, public MediaBufferObserver {
+public:
+
+    static GonkCameraSource *Create(int32_t cameraHandle,
+                                    Size videoSize,
+                                    int32_t frameRate,
+                                    bool storeMetaDataInVideoBuffers = false);
+
+    virtual ~GonkCameraSource();
+
+    virtual status_t start(MetaData *params = NULL);
+    virtual status_t stop();
+    virtual status_t read(
+            MediaBuffer **buffer, const ReadOptions *options = NULL);
+
+    /**
+     * Check whether a GonkCameraSource object is properly initialized.
+     * Must call this method before stop().
+     * @return OK if initialization has successfully completed.
+     */
+    virtual status_t initCheck() const;
+
+    /**
+     * Returns the MetaData associated with the GonkCameraSource,
+     * including:
+     * kKeyColorFormat: YUV color format of the video frames
+     * kKeyWidth, kKeyHeight: dimension (in pixels) of the video frames
+     * kKeySampleRate: frame rate in frames per second
+     * kKeyMIMEType: always fixed to be MEDIA_MIMETYPE_VIDEO_RAW
+     */
+    virtual sp<MetaData> getFormat();
+
+    /**
+     * Tell whether this camera source stores meta data or real YUV
+     * frame data in video buffers.
+     *
+     * @return true if meta data is stored in the video
+     *      buffers; false if real YUV data is stored in
+     *      the video buffers.
+     */
+    bool isMetaDataStoredInVideoBuffers() const;
+
+    virtual void signalBufferReturned(MediaBuffer* buffer);
+
+protected:
+
+    enum CameraFlags {
+        FLAGS_SET_CAMERA = 1L << 0,
+        FLAGS_HOT_CAMERA = 1L << 1,
+    };
+
+    int32_t  mCameraFlags;
+    Size     mVideoSize;
+    int32_t  mVideoFrameRate;
+    int32_t  mColorFormat;
+    status_t mInitCheck;
+
+    sp<MetaData> mMeta;
+
+    int64_t mStartTimeUs;
+    int32_t mNumFramesReceived;
+    int64_t mLastFrameTimestampUs;
+    bool mStarted;
+    int32_t mNumFramesEncoded;
+
+    // Time between capture of two frames.
+    int64_t mTimeBetweenFrameCaptureUs;
+
+    GonkCameraSource(int32_t cameraHandle,
+                 Size videoSize, int32_t frameRate,
+                 bool storeMetaDataInVideoBuffers = false);
+
+    virtual void startCameraRecording();
+    virtual void stopCameraRecording();
+    virtual void releaseRecordingFrame(const sp<IMemory>& frame);
+
+    // Returns true if need to skip the current frame.
+    // Called from dataCallbackTimestamp.
+    virtual bool skipCurrentFrame(int64_t timestampUs) {return false;}
+
+    friend class GonkCameraSourceListener;
+    // Callback called when still camera raw data is available.
+    virtual void dataCallback(int32_t msgType, const sp<IMemory> &data) {}
+
+    virtual void dataCallbackTimestamp(int64_t timestampUs, int32_t msgType,
+            const sp<IMemory> &data);
+
+private:
+
+    Mutex mLock;
+    Condition mFrameAvailableCondition;
+    Condition mFrameCompleteCondition;
+    List<sp<IMemory> > mFramesReceived;
+    List<sp<IMemory> > mFramesBeingEncoded;
+    List<int64_t> mFrameTimes;
+
+    int64_t mFirstFrameTimeUs;
+    int32_t mNumFramesDropped;
+    int32_t mNumGlitches;
+    int64_t mGlitchDurationThresholdUs;
+    bool mCollectStats;
+    bool mIsMetaDataStoredInVideoBuffers;
+    int32_t mCameraHandle;
+
+    void releaseQueuedFrames();
+    void releaseOneRecordingFrame(const sp<IMemory>& frame);
+
+    status_t init(Size videoSize, int32_t frameRate,
+                  bool storeMetaDataInVideoBuffers);
+    status_t isCameraColorFormatSupported(const CameraParameters& params);
+    status_t configureCamera(CameraParameters* params,
+                    int32_t width, int32_t height,
+                    int32_t frameRate);
+
+    status_t checkVideoSize(const CameraParameters& params,
+                    int32_t width, int32_t height);
+
+    status_t checkFrameRate(const CameraParameters& params,
+                    int32_t frameRate);
+
+    void releaseCamera();
+
+    GonkCameraSource(const GonkCameraSource &);
+    GonkCameraSource &operator=(const GonkCameraSource &);
+};
+
+}  // namespace android
+
+#endif  // GONK_CAMERA_SOURCE_H_

dom/camera/GonkRecorder.h

@@ -0,0 +1,174 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef GONK_RECORDER_H_
+
+#define GONK_RECORDER_H_
+
+#include <media/mediarecorder.h>
+#include <camera/CameraParameters.h>
+#include <utils/String8.h>
+
+#include <system/audio.h>
+
+namespace android {
+
+class GonkCameraSource;
+struct MediaSource;
+struct MediaWriter;
+class MetaData;
+struct AudioSource;
+class MediaProfiles;
+
+struct GonkRecorder {
+    GonkRecorder();
+    virtual ~GonkRecorder();
+
+    virtual status_t init();
+    virtual status_t setAudioSource(audio_source_t as);
+    virtual status_t setVideoSource(video_source vs);
+    virtual status_t setOutputFormat(output_format of);
+    virtual status_t setAudioEncoder(audio_encoder ae);
+    virtual status_t setVideoEncoder(video_encoder ve);
+    virtual status_t setVideoSize(int width, int height);
+    virtual status_t setVideoFrameRate(int frames_per_second);
+    virtual status_t setOutputFile(const char *path);
+    virtual status_t setOutputFile(int fd, int64_t offset, int64_t length);
+    virtual status_t setParameters(const String8& params);
+    virtual status_t setCameraHandle(int32_t handle);
+    virtual status_t setListener(const sp<IMediaRecorderClient>& listener);
+    virtual status_t prepare();
+    virtual status_t start();
+    virtual status_t pause();
+    virtual status_t stop();
+    virtual status_t close();
+    virtual status_t reset();
+    virtual status_t getMaxAmplitude(int *max);
+    virtual status_t dump(int fd, const Vector<String16>& args) const;
+    // Querying a SurfaceMediaSourcer
+
+private:
+    sp<IMediaRecorderClient> mListener;
+    sp<MediaWriter> mWriter;
+    int mOutputFd;
+    sp<AudioSource> mAudioSourceNode;
+
+    audio_source_t mAudioSource;
+    video_source mVideoSource;
+    output_format mOutputFormat;
+    audio_encoder mAudioEncoder;
+    video_encoder mVideoEncoder;
+    bool mUse64BitFileOffset;
+    int32_t mVideoWidth, mVideoHeight;
+    int32_t mFrameRate;
+    int32_t mVideoBitRate;
+    int32_t mAudioBitRate;
+    int32_t mAudioChannels;
+    int32_t mSampleRate;
+    int32_t mInterleaveDurationUs;
+    int32_t mIFramesIntervalSec;
+    int32_t mCameraId;
+    int32_t mVideoEncoderProfile;
+    int32_t mVideoEncoderLevel;
+    int32_t mMovieTimeScale;
+    int32_t mVideoTimeScale;
+    int32_t mAudioTimeScale;
+    int64_t mMaxFileSizeBytes;
+    int64_t mMaxFileDurationUs;
+    int64_t mTrackEveryTimeDurationUs;
+    int32_t mRotationDegrees;  // Clockwise
+    int32_t mLatitudex10000;
+    int32_t mLongitudex10000;
+    int32_t mStartTimeOffsetMs;
+
+    String8 mParams;
+
+    bool mIsMetaDataStoredInVideoBuffers;
+    MediaProfiles *mEncoderProfiles;
+
+    bool mStarted;
+    // Needed when GLFrames are encoded.
+    // An <ISurfaceTexture> pointer
+    // will be sent to the client side using which the
+    // frame buffers will be queued and dequeued
+    bool mDisableAudio;
+    int32_t mCameraHandle;
+
+    status_t setupMPEG4Recording(
+        int outputFd,
+        int32_t videoWidth, int32_t videoHeight,
+        int32_t videoBitRate,
+        int32_t *totalBitRate,
+        sp<MediaWriter> *mediaWriter);
+    void setupMPEG4MetaData(int64_t startTimeUs, int32_t totalBitRate,
+        sp<MetaData> *meta);
+    status_t startMPEG4Recording();
+    status_t startAMRRecording();
+    status_t startRawAudioRecording();
+    status_t startMPEG2TSRecording();
+    sp<MediaSource> createAudioSource();
+    status_t checkVideoEncoderCapabilities();
+    status_t checkAudioEncoderCapabilities();
+    // Generic MediaSource set-up. Returns the appropriate
+    // source (CameraSource or SurfaceMediaSource)
+    // depending on the videosource type
+    status_t setupMediaSource(sp<MediaSource> *mediaSource);
+    status_t setupCameraSource(sp<GonkCameraSource> *cameraSource);
+    // setup the surfacemediasource for the encoder
+
+    status_t setupAudioEncoder(const sp<MediaWriter>& writer);
+    status_t setupVideoEncoder(
+            sp<MediaSource> cameraSource,
+            int32_t videoBitRate,
+            sp<MediaSource> *source);
+
+    // Encoding parameter handling utilities
+    status_t setParameter(const String8 &key, const String8 &value);
+    status_t setParamAudioEncodingBitRate(int32_t bitRate);
+    status_t setParamAudioNumberOfChannels(int32_t channles);
+    status_t setParamAudioSamplingRate(int32_t sampleRate);
+    status_t setParamAudioTimeScale(int32_t timeScale);
+    status_t setParamVideoEncodingBitRate(int32_t bitRate);
+    status_t setParamVideoIFramesInterval(int32_t seconds);
+    status_t setParamVideoEncoderProfile(int32_t profile);
+    status_t setParamVideoEncoderLevel(int32_t level);
+    status_t setParamVideoCameraId(int32_t cameraId);
+    status_t setParamVideoTimeScale(int32_t timeScale);
+    status_t setParamVideoRotation(int32_t degrees);
+    status_t setParamTrackTimeStatus(int64_t timeDurationUs);
+    status_t setParamInterleaveDuration(int32_t durationUs);
+    status_t setParam64BitFileOffset(bool use64BitFileOffset);
+    status_t setParamMaxFileDurationUs(int64_t timeUs);
+    status_t setParamMaxFileSizeBytes(int64_t bytes);
+    status_t setParamMovieTimeScale(int32_t timeScale);
+    status_t setParamGeoDataLongitude(int64_t longitudex10000);
+    status_t setParamGeoDataLatitude(int64_t latitudex10000);
+    void clipVideoBitRate();
+    void clipVideoFrameRate();
+    void clipVideoFrameWidth();
+    void clipVideoFrameHeight();
+    void clipAudioBitRate();
+    void clipAudioSampleRate();
+    void clipNumberOfAudioChannels();
+    void setDefaultProfileIfNecessary();
+
+    GonkRecorder(const GonkRecorder &);
+    GonkRecorder &operator=(const GonkRecorder &);
+};
+
+}  // namespace android
+
+#endif  // GONK_RECORDER_H_

dom/camera/ICameraControl.h

@@ -6,6 +6,7 @@
 #define DOM_CAMERA_ICAMERACONTROL_H
 
 #include "jsapi.h"
+#include "nsIDOMDeviceStorage.h"
 #include "nsIDOMCameraManager.h"
 #include "DictionaryHelpers.h"
 #include "CameraCommon.h"
@@ -26,8 +27,9 @@ public:
   virtual void StopPreview() = 0;
   virtual nsresult AutoFocus(nsICameraAutoFocusCallback* onSuccess, nsICameraErrorCallback* onError) = 0;
   virtual nsresult TakePicture(CameraSize aSize, int32_t aRotation, const nsAString& aFileFormat, CameraPosition aPosition, nsICameraTakePictureCallback* onSuccess, nsICameraErrorCallback* onError) = 0;
-  virtual nsresult StartRecording(CameraSize aSize, nsICameraStartRecordingCallback* onSuccess, nsICameraErrorCallback* onError) = 0;
+  virtual nsresult StartRecording(nsIDOMDeviceStorage* aStorageArea, const nsAString& aFilename, nsICameraStartRecordingCallback* onSuccess, nsICameraErrorCallback* onError) = 0;
   virtual nsresult StopRecording() = 0;
+  virtual nsresult GetPreviewStreamVideoMode(CameraRecordingOptions* aOptions, nsICameraPreviewStreamCallback* onSuccess, nsICameraErrorCallback* onError) = 0;
 
   virtual nsresult Set(uint32_t aKey, const nsAString& aValue) = 0;
   virtual nsresult Get(uint32_t aKey, nsAString& aValue) = 0;

dom/camera/Makefile.in

@@ -32,6 +32,9 @@ CPPSRCS += \
   GonkCameraControl.cpp \
   GonkCameraHwMgr.cpp \
   GonkNativeWindow.cpp \
+  GonkRecorder.cpp \
+  GonkCameraSource.cpp \
+  AudioParameter.cpp \
   $(NULL)
 else ifeq (gonk,$(MOZ_WIDGET_TOOLKIT))
 CPPSRCS += \

dom/camera/README

@@ -0,0 +1,28 @@
+This README file details from where some of the camcorder source files were derived from and how to apply the provided patch file to get the updated files for B2G.
+---------------------------------
+
+Following is the list of B2G files which were derived from an android ics_chocolate build. It also shows the corresponding locations where the original source files can be found:
+
+GonkRecoder.cpp:
+https://www.codeaurora.org/gitweb/quic/la/?p=platform/frameworks/base.git;a=blob;f=media/libmediaplayerservice/StagefrightRecorder.cpp;hb=ef1672482a9c2b88d8017927df68144fee42626c
+
+GonkRecorder.h:
+https://www.codeaurora.org/gitweb/quic/la/?p=platform/frameworks/base.git;a=blob;f=media/libmediaplayerservice/StagefrightRecorder.h;hb=e3682213bcd3fe43b059e00f0fe4dbebc3f3c35d
+
+GonkCameraSource.cpp:
+https://www.codeaurora.org/gitweb/quic/la/?p=platform/frameworks/base.git;a=blob;f=media/libstagefright/CameraSource.cpp;hb=7fa677babfee9c241a131b22c9c1c5ab512ef2d2
+
+GonkCameraSource.h:
+https://www.codeaurora.org/gitweb/quic/la/?p=platform/frameworks/base.git;a=blob;f=include/media/stagefright/CameraSource.h;hb=96af14d9b013496accf40a85a66fefcba3ac0111
+
+AudioParameter.cpp:
+https://www.codeaurora.org/gitweb/quic/la/?p=platform/frameworks/base.git;a=blob;f=media/libmedia/AudioParameter.cpp;hb=4dc22e77cfd2a1c3671e5646ee87c5e4c15596a0
+
+GonkCameraListener.h:
+https://www.codeaurora.org/gitweb/quic/la/?p=platform/frameworks/base.git;a=blob;f=include/camera/Camera.h;hb=796f35e408d9dca386f90d8fbde80471ac011fa6
+
+There were quite a few changes done to the above listed sources to support camcorder on B2G platform.
+update.patch lists the changes on top of the original files.
+update.sh shell script copies the files from an android tree and applies the patch to get updated files for B2G.
+
+

dom/camera/nsIDOMCameraManager.idl

@@ -5,6 +5,7 @@
 
 
 interface nsIDOMBlob;
+interface nsIDOMDeviceStorage;
 
 /* Used to set the dimensions of a captured picture,
    a preview stream, a video capture stream, etc. */
@@ -108,10 +109,8 @@ interface nsICameraCapabilities : nsISupports
     readonly attribute jsval        videoSizes;
 };
 
-/*
-    These properties only affect the captured image;
-    invalid property settings are ignored.
-*/
+/* These properties only affect the captured image;
+   invalid property settings are ignored. */
 dictionary CameraPictureOptions
 {
     /* an object with a combination of 'height' and 'width' properties
@@ -147,6 +146,14 @@ dictionary CameraPictureOptions
     jsval     position;
 };
 
+/* These properties affect video recording. */
+dictionary CameraRecordingOptions
+{
+    long width;
+    long height;
+    long rotation;
+};
+
 [scriptable, function, uuid(0444a687-4bc9-462c-8246-5423f0fe46a4)]
 interface nsICameraPreviewStreamCallback : nsISupports
 {
@@ -165,10 +172,10 @@ interface nsICameraTakePictureCallback : nsISupports
     void handleEvent(in nsIDOMBlob picture);
 };
 
-[scriptable, function, uuid(ac43f123-529c-48d3-84dd-ad206b7aca9b)]
+[scriptable, function, uuid(89a762f8-581b-410a-ad86-e2bd2113ad82)]
 interface nsICameraStartRecordingCallback : nsISupports
 {
-    void handleEvent(in nsIDOMMediaStream stream);
+    void handleEvent();
 };
 
 [scriptable, function, uuid(fb80db71-e315-42f0-9ea9-dd3dd312ed70)]
@@ -187,7 +194,7 @@ interface nsICameraErrorCallback : nsISupports
     attributes here affect the preview, any pictures taken, and/or
     any video recorded by the camera.
 */
-[scriptable, uuid(b8949e5c-55b0-49dd-99a9-68d11342915a)]
+[scriptable, uuid(469e0462-59e4-4ed5-afa9-aecd1256ee30)]
 interface nsICameraControl : nsISupports
 {
     readonly attribute nsICameraCapabilities capabilities;
@@ -290,15 +297,21 @@ interface nsICameraControl : nsISupports
     [implicit_jscontext]
     void takePicture(in jsval aOptions, in nsICameraTakePictureCallback onSuccess, [optional] in nsICameraErrorCallback onError);
 
-    /* start recording video; 'aOptions' define the frame size of to
-       capture, chosen from capabilities.videoSizes, e.g.:
+    /* get a media stream to be used as a camera viewfinder in video mode; 'aOptions' 
+       define the frame size of the video capture, chosen from capabilities.videoSizes, e.g.:
         {
             width: 640,
-            height: 480
+            height: 480,
+            rotation: 90
         }
     */
     [implicit_jscontext]
-    void startRecording(in jsval aOptions, in nsICameraStartRecordingCallback onSuccess, [optional] in nsICameraErrorCallback onError);
+    void getPreviewStreamVideoMode(in jsval aOptions, in nsICameraPreviewStreamCallback onSuccess, [optional] in nsICameraErrorCallback onError);
+
+    /* start recording video; 
+    */
+    [implicit_jscontext]
+    void startRecording(in nsIDOMDeviceStorage storageArea, in DOMString filename, in nsICameraStartRecordingCallback onSuccess, [optional] in nsICameraErrorCallback onError);
 
     /* stop precording video. */
     void stopRecording();

dom/camera/update.sh

@@ -0,0 +1,14 @@
+# Usage: ./update.sh <android_ics_os_src_directory>
+#
+# Copies the needed files from the directory containing the original
+# Android ICS OS source and applies the B2G specific changes for the
+# camcorder functionality in B2G.
+cp $1/frameworks/base/media/libmediaplayerservice/StagefrightRecorder.cpp ./GonkRecorder.cpp
+cp $1/frameworks/base/media/libmediaplayerservice/StagefrightRecorder.h ./GonkRecorder.h
+cp $1/frameworks/base/media/libstagefright/CameraSource.cpp ./GonkCameraSource.cpp
+cp $1/frameworks/base/include/media/stagefright/CameraSource.h ./GonkCameraSource.h
+cp $1/frameworks/base/media/libmedia/AudioParameter.cpp ./AudioParameter.cpp
+cp $1/frameworks/base/include/camera/Camera.h ./GonkCameraListener.h
+patch -p1 <update.patch
+# If you import CAF sources, you also need to apply update2.patch
+patch -p1 <update2.patch

dom/camera/update2.patch

@@ -0,0 +1,163 @@
+diff --git a/dom/camera/GonkCameraSource.cpp b/dom/camera/GonkCameraSource.cpp
+--- a/dom/camera/GonkCameraSource.cpp
++++ b/dom/camera/GonkCameraSource.cpp
+@@ -492,21 +492,17 @@ status_t GonkCameraSource::init(
+     mMeta = new MetaData;
+     mMeta->setCString(kKeyMIMEType,  MEDIA_MIMETYPE_VIDEO_RAW);
+     mMeta->setInt32(kKeyColorFormat, mColorFormat);
+     mMeta->setInt32(kKeyWidth,       mVideoSize.width);
+     mMeta->setInt32(kKeyHeight,      mVideoSize.height);
+     mMeta->setInt32(kKeyStride,      mVideoSize.width);
+     mMeta->setInt32(kKeySliceHeight, mVideoSize.height);
+     mMeta->setInt32(kKeyFrameRate,   mVideoFrameRate);
+-    mMeta->setInt32(kKeyHFR, hfr);
+ 
+-    if (want3D) {
+-        mMeta->setInt32(kKey3D, !0);
+-    }
+     return OK;
+ }
+ 
+ GonkCameraSource::~GonkCameraSource() {
+     if (mStarted) {
+         stop();
+     } else if (mInitCheck == OK) {
+         // Camera is initialized but because start() is never called,
+diff --git a/dom/camera/GonkRecorder.cpp b/dom/camera/GonkRecorder.cpp
+--- a/dom/camera/GonkRecorder.cpp
++++ b/dom/camera/GonkRecorder.cpp
+@@ -716,56 +716,16 @@ status_t GonkRecorder::start() {
+         mStarted = true;
+     }
+ 
+     return status;
+ }
+ 
+ sp<MediaSource> GonkRecorder::createAudioSource() {
+ 
+-    bool tunneledSource = false;
+-    const char *tunnelMime;
+-    {
+-        AudioParameter param;
+-        String8 key("tunneled-input-formats");
+-        param.add( key, String8("get") );
+-        String8 valueStr = AudioSystem::getParameters( 0, param.toString());
+-        AudioParameter result(valueStr);
+-        int value;
+-        if ( mAudioEncoder == AUDIO_ENCODER_AMR_NB &&
+-            result.getInt(String8("AMR"),value) == NO_ERROR ) {
+-            tunneledSource = true;
+-            tunnelMime = MEDIA_MIMETYPE_AUDIO_AMR_NB;
+-        }
+-        else if ( mAudioEncoder == AUDIO_ENCODER_QCELP &&
+-            result.getInt(String8("QCELP"),value) == NO_ERROR ) {
+-            tunneledSource = true;
+-            tunnelMime = MEDIA_MIMETYPE_AUDIO_QCELP;
+-        }
+-        else if ( mAudioEncoder == AUDIO_ENCODER_EVRC &&
+-            result.getInt(String8("EVRC"),value) == NO_ERROR ) {
+-            tunneledSource = true;
+-            tunnelMime = MEDIA_MIMETYPE_AUDIO_EVRC;
+-        }
+-    }
+-
+-    if ( tunneledSource ) {
+-        sp<AudioSource> audioSource = NULL;
+-        sp<MetaData> meta = new MetaData;
+-        meta->setInt32(kKeyChannelCount, mAudioChannels);
+-        meta->setInt32(kKeySampleRate, mSampleRate);
+-        meta->setInt32(kKeyBitRate, mAudioBitRate);
+-        if (mAudioTimeScale > 0) {
+-            meta->setInt32(kKeyTimeScale, mAudioTimeScale);
+-        }
+-        meta->setCString( kKeyMIMEType, tunnelMime );
+-        audioSource = new AudioSource( mAudioSource, meta);
+-        return audioSource->initCheck( ) == OK ? audioSource : NULL;
+-    }
+-
+     sp<AudioSource> audioSource =
+         new AudioSource(
+                 mAudioSource,
+                 mSampleRate,
+                 mAudioChannels);
+ 
+     status_t err = audioSource->initCheck();
+ 
+@@ -1226,56 +1186,33 @@ status_t GonkRecorder::setupVideoEncoder
+ 
+         default:
+             CHECK(!"Should not be here, unsupported video encoding.");
+             break;
+     }
+ 
+     sp<MetaData> meta = cameraSource->getFormat();
+ 
+-    int32_t width, height, stride, sliceHeight, colorFormat, hfr, is3D;
++    int32_t width, height, stride, sliceHeight, colorFormat;
+     CHECK(meta->findInt32(kKeyWidth, &width));
+     CHECK(meta->findInt32(kKeyHeight, &height));
+     CHECK(meta->findInt32(kKeyStride, &stride));
+     CHECK(meta->findInt32(kKeySliceHeight, &sliceHeight));
+     CHECK(meta->findInt32(kKeyColorFormat, &colorFormat));
+-    CHECK(meta->findInt32(kKeyHFR, &hfr));
+-
+-    if(hfr) {
+-      mMaxFileDurationUs = mMaxFileDurationUs * (hfr/mFrameRate);
+-    }
+-
+ 
+     enc_meta->setInt32(kKeyWidth, width);
+     enc_meta->setInt32(kKeyHeight, height);
+     enc_meta->setInt32(kKeyIFramesInterval, mIFramesIntervalSec);
+     enc_meta->setInt32(kKeyStride, stride);
+     enc_meta->setInt32(kKeySliceHeight, sliceHeight);
+     enc_meta->setInt32(kKeyColorFormat, colorFormat);
+-    enc_meta->setInt32(kKeyHFR, hfr);
+     if (mVideoTimeScale > 0) {
+         enc_meta->setInt32(kKeyTimeScale, mVideoTimeScale);
+     }
+ 
+-    char mDeviceName[100];
+-    property_get("ro.board.platform",mDeviceName,"0");
+-    if(!strncmp(mDeviceName, "msm7627a", 8)) {
+-      if(hfr && (width * height > 432*240)) {
+-        LOGE("HFR mode is supported only upto WQVGA resolution");
+-        return INVALID_OPERATION;
+-      }
+-    }
+-    else {
+-      if(hfr && ((mVideoEncoder != VIDEO_ENCODER_H264) || (width * height > 800*480))) {
+-        LOGE("HFR mode is supported only upto WVGA and H264 codec.");
+-        return INVALID_OPERATION;
+-      }
+-    }
+-
+-
+     /*
+      * can set profile from the app as a parameter.
+      * For the mean time, set from shell
+      */
+ 
+     char value[PROPERTY_VALUE_MAX];
+     bool customProfile = false;
+ 
+@@ -1322,19 +1259,16 @@ status_t GonkRecorder::setupVideoEncoder
+     }
+ 
+     if (mVideoEncoderProfile != -1) {
+         enc_meta->setInt32(kKeyVideoProfile, mVideoEncoderProfile);
+     }
+     if (mVideoEncoderLevel != -1) {
+         enc_meta->setInt32(kKeyVideoLevel, mVideoEncoderLevel);
+     }
+-    if (meta->findInt32(kKey3D, &is3D)) {
+-        enc_meta->setInt32(kKey3D, is3D);
+-    }
+ 
+     uint32_t encoder_flags = 0;
+     if (mIsMetaDataStoredInVideoBuffers) {
+         LOGW("Camera source supports metadata mode, create OMXCodec for metadata");
+         encoder_flags |= OMXCodec::kHardwareCodecsOnly;
+         encoder_flags |= OMXCodec::kStoreMetaDataInVideoBuffers;
+         encoder_flags |= OMXCodec::kOnlySubmitOneInputBufferAtOneTime;
+     }

dom/devicestorage/DeviceStorageRequestChild.cpp

@@ -55,7 +55,8 @@ DeviceStorageRequestChild::Recv__delete__(const DeviceStorageResponseValue& aVal
       BlobChild* actor = static_cast<BlobChild*>(r.blobChild());
       nsCOMPtr<nsIDOMBlob> blob = actor->GetBlob();
 
-      jsval result = InterfaceToJsval(mRequest->GetOwner(), blob, &NS_GET_IID(nsIDOMBlob));
+      nsCOMPtr<nsIDOMFile> file = do_QueryInterface(blob);
+      jsval result = InterfaceToJsval(mRequest->GetOwner(), file, &NS_GET_IID(nsIDOMFile));
       mRequest->FireSuccess(result);
       break;
     }

dom/devicestorage/nsDeviceStorage.cpp

@@ -1913,6 +1913,17 @@ nsDOMDeviceStorage::Stat(nsIDOMDOMRequest** aRetval)
   return NS_OK;
 }
 
+NS_IMETHODIMP
+nsDOMDeviceStorage::GetRootDirectory(nsIFile** aRootDirectory)
+{
+  if (!mRootDirectory) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsCOMPtr<nsIFile> file;
+  return mRootDirectory->Clone(aRootDirectory);
+}
+
 NS_IMETHODIMP
 nsDOMDeviceStorage::Enumerate(const JS::Value & aName,
                              const JS::Value & aOptions,

dom/icc/interfaces/SimToolKit.idl

@@ -255,6 +255,94 @@ dictionary MozStkSetUpEventList
    jsval eventList; // unsigned short []
 };
 
+dictionary MozStkLocationInfo
+{
+  /**
+   * Mobile Country Code (MCC) of the current serving operator.
+   */
+  unsigned short mcc;
+
+  /**
+   * Mobile Network Code (MNC) of the current serving operator.
+   */
+  unsigned short mnc;
+
+  /**
+   * Mobile Location Area Code (LAC) for the current serving operator.
+   */
+  unsigned short gsmLocationAreaCode;
+
+  /**
+   * Mobile Cell ID for the current serving operator.
+   */
+  unsigned long gsmCellId;
+};
+
+dictionary MozStkDuration
+{
+  /**
+   * Time unit used, should be one of STK_TIME_UNIT_*.
+   */
+  unsigned short timeUnit;
+
+  /**
+   * The length of time required, expressed in timeUnit.
+   */
+  octet timeInterval;
+};
+
+dictionary MozStkPlayTone
+{
+  /**
+   * Text String.
+   */
+  DOMString text;
+
+  /**
+   * One of STK_TONE_TYPE_*.
+   */
+  unsigned short tone;
+
+  /**
+   * The length of time for which the ME shall generate the tone.
+   *
+   * @see MozStkDuration
+   */
+  jsval duration;
+
+  /**
+   * Need to vibrate or not.
+   * true: vibrate alert, if available, with the tone.
+   * false: use of vibrate alert is up to the ME.
+   */
+  boolean isVibrate;
+};
+
+dictionary MozStkLocationEvent
+{
+  /**
+   * The type of this event.
+   * It shall be nsIDOMMozIccManager.STK_EVENT_TYPE_LOCATION_STATUS;
+   */
+  unsigned short eventType;
+
+  /**
+   * Indicate current service state of the MS with one of the values listed
+   * below:
+   *  - nsIDOMMozIccManager.STK_SERVICE_STATE_NORMAL
+   *  - nsIDOMMozIccManager.STK_SERVICE_STATE_LIMITED
+   *  - nsIDOMMozIccManager.STK_SERVICE_STATE_UNAVAILABLE
+   */
+  unsigned short locationStatus;
+
+  /**
+   * See MozStkLocationInfo.
+   * This value shall only be provided if the locationStatus indicates
+   * 'STK_SERVICE_STATE_NORMAL'.
+   */
+  jsval locationInfo;
+};
+
 dictionary MozStkCommand
 {
   /**
@@ -306,6 +394,22 @@ dictionary MozStkCommand
    * When typeOfCommand is
    * - STK_CMD_SET_UP_EVENT_LIST
    * options is MozStkSetUpEventList.
+   *
+   * When typeOfCommand is
+   * - STK_CMD_PLAY_TONE
+   * options is MozStkPlayTone.
+   *
+   * When typeOfCommand is
+   * - STK_CMD_POLL_INTERVAL
+   * options is MozStkDuration.
+   *
+   * When typeOfCommand is
+   * - STK_CMD_POLL_OFF
+   * options is null.
+   *
+   * When typeOfCommand is
+   * - STK_CMD_REFRESH
+   * options is null.
    */
   jsval options;
 };

dom/icc/interfaces/nsIDOMIccManager.idl

@@ -7,7 +7,7 @@
 
 interface nsIDOMEventListener;
 
-[scriptable, builtinclass, uuid(2eace3f9-6aa4-491b-820e-7d69ce7b3f02)]
+[scriptable, builtinclass, uuid(9d898c66-3485-4cd5-ab8d-92ef2988887b)]
 interface nsIDOMMozIccManager : nsIDOMEventTarget
 {
   /**
@@ -30,6 +30,8 @@ interface nsIDOMMozIccManager : nsIDOMEventTarget
    * @see TS 11.14, clause 13.4
    */
   const unsigned short STK_CMD_REFRESH               = 0x01;
+  const unsigned short STK_CMD_POLL_INTERVAL         = 0x03;
+  const unsigned short STK_CMD_POLL_OFF              = 0x04;
   const unsigned short STK_CMD_SET_UP_EVENT_LIST     = 0x05;
   const unsigned short STK_CMD_SET_UP_CALL           = 0x10;
   const unsigned short STK_CMD_SEND_SS               = 0x11;
@@ -37,6 +39,7 @@ interface nsIDOMMozIccManager : nsIDOMEventTarget
   const unsigned short STK_CMD_SEND_SMS              = 0x13;
   const unsigned short STK_CMD_SEND_DTMF             = 0x14;
   const unsigned short STK_CMD_LAUNCH_BROWSER        = 0x15;
+  const unsigned short STK_CMD_PLAY_TONE             = 0x20;
   const unsigned short STK_CMD_DISPLAY_TEXT          = 0x21;
   const unsigned short STK_CMD_GET_INKEY             = 0x22;
   const unsigned short STK_CMD_GET_INPUT             = 0x23;
@@ -162,6 +165,35 @@ interface nsIDOMMozIccManager : nsIDOMEventTarget
    const unsigned short STK_EVENT_TYPE_BROWSING_STATUS                  = 0x0f;
    const unsigned short STK_EVENT_TYPE_FRAMES_INFORMATION_CHANGED       = 0x10;
 
+   /**
+    * The service state of STK Location Status.
+    */
+   const unsigned short STK_SERVICE_STATE_NORMAL      = 0x00;
+   const unsigned short STK_SERVICE_STATE_LIMITED     = 0x01;
+   const unsigned short STK_SERVICE_STATE_UNAVAILABLE = 0x02;
+
+  /**
+   * Tone type.
+   */
+  const unsigned short STK_TONE_TYPE_DIAL_TONE                = 0x01;
+  const unsigned short STK_TONE_TYPE_CALLED_SUBSCRIBER_BUSY   = 0x02;
+  const unsigned short STK_TONE_TYPE_CONGESTION               = 0x03;
+  const unsigned short STK_TONE_TYPE_RADIO_PATH_ACK           = 0x04;
+  const unsigned short STK_TONE_TYPE_RADIO_PATH_NOT_AVAILABLE = 0x05;
+  const unsigned short STK_TONE_TYPE_ERROR                    = 0x06;
+  const unsigned short STK_TONE_TYPE_CALL_WAITING_TONE        = 0x07;
+  const unsigned short STK_TONE_TYPE_RINGING_TONE             = 0x08;
+  const unsigned short STK_TONE_TYPE_GENERAL_BEEP             = 0x10;
+  const unsigned short STK_TONE_TYPE_POSITIVE_ACK_TONE        = 0x11;
+  const unsigned short STK_TONE_TYPE_NEGATIVE_ACK_TONE        = 0x12;
+
+  /**
+   * Time unit
+   */
+  const unsigned short STK_TIME_UNIT_MINUTE       = 0x00;
+  const unsigned short STK_TIME_UNIT_SECOND       = 0x01;
+  const unsigned short STK_TIME_UNIT_TENTH_SECOND = 0x02;
+
   /**
    * Send the response back to ICC after an attempt to execute STK Proactive
    * Command.
@@ -185,6 +217,16 @@ interface nsIDOMMozIccManager : nsIDOMEventTarget
   void sendStkMenuSelection(in unsigned short itemIdentifier,
                             in boolean        helpRequested);
 
+  /**
+   * Send "Event Download" Envelope command to ICC.
+   * ICC will not respond with any data for this command.
+   *
+   * @param event
+   *        one of events below:
+   *        - MozStkLocationEvent
+   */
+  void sendStkEventDownload(in jsval event);
+
   /**
    * The 'stkcommand' event is notified whenever STK Proactive Command is
    * issued from ICC.

dom/icc/src/IccManager.cpp

@@ -137,6 +137,17 @@ IccManager::SendStkMenuSelection(uint16_t aItemIdentifier, bool aHelpRequested)
   return NS_OK;
 }
 
+NS_IMETHODIMP
+IccManager::SendStkEventDownload(const JS::Value& aEvent)
+{
+  if (!mProvider) {
+    return NS_ERROR_FAILURE;
+  }
+
+  mProvider->SendStkEventDownload(GetOwner(), aEvent);
+  return NS_OK;
+}
+
 nsresult
 IccManager::InternalDispatchEvent(const nsAString& aType)
 {

dom/interfaces/devicestorage/nsIDOMDeviceStorage.idl

@@ -9,13 +9,14 @@ interface nsIDOMDOMRequest;
 interface nsIDOMDeviceStorageCursor;
 interface nsIDOMDeviceStorageChangeEvent;
 interface nsIDOMEventListener;
+interface nsIFile;
 
 dictionary DeviceStorageEnumerationParameters
 {
   jsval since;
 };
 
-[scriptable, uuid(7efbe025-3a8a-4151-9257-3e8c941dc099), builtinclass]
+[scriptable, uuid(7f69936f-2948-4733-ba41-c7e1d657a88b), builtinclass]
 interface nsIDOMDeviceStorage : nsIDOMEventTarget
 {
     [implicit_jscontext] attribute jsval onchange;
@@ -38,4 +39,6 @@ interface nsIDOMDeviceStorage : nsIDOMEventTarget
     nsIDOMDeviceStorageCursor enumerateEditable([optional] in jsval aName, /* DeviceStorageEnumerationParameters */ [optional] in jsval options);
 
     nsIDOMDOMRequest stat();
+
+    [noscript] readonly attribute nsIFile rootDirectory;
 };

dom/ipc/PBrowser.ipdl

@@ -266,6 +266,12 @@ parent:
      */
     ContentReceivedTouch(bool aPreventDefault);
 
+    /**
+     * Updates any zoom constraints on the parent and anything tied to it. This
+     * is useful for control logic that resides outside of the remote browser.
+     */
+    UpdateZoomConstraints(bool aAllowZoom, float aMinZoom, float aMaxZoom);
+
     __delete__();
 
 child:
@@ -282,9 +288,9 @@ child:
 
     LoadURL(nsCString uri);
 
-    UpdateDimensions(nsRect rect, nsIntSize size);
+    UpdateDimensions(nsRect rect, nsIntSize size) compress;
 
-    UpdateFrame(FrameMetrics frame);
+    UpdateFrame(FrameMetrics frame) compress;
 
     /**
      * Requests handling of a double tap. |point| is in CSS pixels, relative to

dom/ipc/TabChild.cpp

@@ -18,6 +18,7 @@
 #include "mozilla/dom/PContentChild.h"
 #include "mozilla/dom/PContentDialogChild.h"
 #include "mozilla/ipc/DocumentRendererChild.h"
+#include "mozilla/layers/AsyncPanZoomController.h"
 #include "mozilla/layers/CompositorChild.h"
 #include "mozilla/layers/PLayersChild.h"
 #include "mozilla/layout/RenderFrameChild.h"
@@ -29,10 +30,12 @@
 #include "nsContentUtils.h"
 #include "nsEmbedCID.h"
 #include "nsEventListenerManager.h"
+#include "nsGenericElement.h"
 #include "nsIAppsService.h"
 #include "nsIBaseWindow.h"
 #include "nsIComponentManager.h"
 #include "nsIDOMClassInfo.h"
+#include "nsIDOMElement.h"
 #include "nsIDOMEvent.h"
 #include "nsIDOMWindow.h"
 #include "nsIDOMWindowUtils.h"
@@ -50,6 +53,8 @@
 #include "nsIServiceManager.h"
 #include "nsISupportsImpl.h"
 #include "nsIURI.h"
+#include "nsIURIFixup.h"
+#include "nsCDefaultURIFixup.h"
 #include "nsIView.h"
 #include "nsIWebBrowser.h"
 #include "nsIWebBrowserFocus.h"
@@ -85,6 +90,12 @@ using namespace mozilla::widget;
 
 NS_IMPL_ISUPPORTS1(ContentListener, nsIDOMEventListener)
 
+static const nsIntSize kDefaultViewportSize(980, 480);
+
+static const char CANCEL_DEFAULT_PAN_ZOOM[] = "cancel-default-pan-zoom";
+static const char BROWSER_ZOOM_TO_RECT[] = "browser-zoom-to-rect";
+static const char BEFORE_FIRST_PAINT[] = "before-first-paint";
+
 NS_IMETHODIMP
 ContentListener::HandleEvent(nsIDOMEvent* aEvent)
 {
@@ -151,28 +162,45 @@ TabChild::TabChild(uint32_t aChromeFlags, bool aIsBrowserElement,
   , mTabChildGlobal(nullptr)
   , mChromeFlags(aChromeFlags)
   , mOuterRect(0, 0, 0, 0)
+  , mInnerSize(0, 0)
+  , mOldViewportWidth(0.0f)
   , mLastBackgroundColor(NS_RGB(255, 255, 255))
   , mAppId(aAppId)
   , mDidFakeShow(false)
   , mIsBrowserElement(aIsBrowserElement)
   , mNotified(false)
+  , mContentDocumentIsDisplayed(false)
   , mTriedBrowserInit(false)
 {
     printf("creating %d!\n", NS_IsMainThread());
 }
 
-nsresult
+NS_IMETHODIMP
+TabChild::HandleEvent(nsIDOMEvent* aEvent)
+{
+  nsAutoString eventType;
+  aEvent->GetType(eventType);
+  if (eventType.EqualsLiteral("DOMMetaAdded")) {
+    // This meta data may or may not have been a meta viewport tag. If it was,
+    // we should handle it immediately.
+    HandlePossibleMetaViewportChange();
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
 TabChild::Observe(nsISupports *aSubject,
                   const char *aTopic,
                   const PRUnichar *aData)
 {
-  if (!strcmp(aTopic, "cancel-default-pan-zoom")) {
+  if (!strcmp(aTopic, CANCEL_DEFAULT_PAN_ZOOM)) {
     nsCOMPtr<nsIDocShell> docShell(do_QueryInterface(aSubject));
     nsCOMPtr<nsITabChild> tabChild(GetTabChildFrom(docShell));
     if (tabChild == this) {
       mRemoteFrame->CancelDefaultPanZoom();
     }
-  } else if (!strcmp(aTopic, "browser-zoom-to-rect")) {
+  } else if (!strcmp(aTopic, BROWSER_ZOOM_TO_RECT)) {
     nsCOMPtr<nsIDocShell> docShell(do_QueryInterface(aSubject));
     nsCOMPtr<nsITabChild> tabChild(GetTabChildFrom(docShell));
     if (tabChild == this) {
@@ -182,11 +210,264 @@ TabChild::Observe(nsISupports *aSubject,
              &rect.x, &rect.y, &rect.width, &rect.height);
       SendZoomToRect(rect);
     }
+  } else if (!strcmp(aTopic, BEFORE_FIRST_PAINT)) {
+    if (IsAsyncPanZoomEnabled()) {
+      nsCOMPtr<nsIDocument> subject(do_QueryInterface(aSubject));
+      nsCOMPtr<nsIDOMDocument> domDoc;
+      mWebNav->GetDocument(getter_AddRefs(domDoc));
+      nsCOMPtr<nsIDocument> doc(do_QueryInterface(domDoc));
+
+      if (SameCOMIdentity(subject, doc)) {
+        nsCOMPtr<nsIDOMWindowUtils> utils(GetDOMWindowUtils());
+
+        mContentDocumentIsDisplayed = true;
+
+        // Reset CSS viewport and zoom to default on new page, then calculate them
+        // properly using the actual metadata from the page.
+        SetCSSViewport(kDefaultViewportSize.width, kDefaultViewportSize.height);
+
+        // Calculate a really simple resolution that we probably won't be
+        // keeping, as well as putting the scroll offset back to the top-left of
+        // the page.
+        float resolution = float(mInnerSize.width) / float(kDefaultViewportSize.width);
+        mLastMetrics.mZoom.width = mLastMetrics.mZoom.height =
+          mLastMetrics.mResolution.width = mLastMetrics.mResolution.height =
+            resolution;
+        mLastMetrics.mScrollOffset = gfx::Point(0, 0);
+        utils->SetResolution(resolution, resolution);
+
+        HandlePossibleMetaViewportChange();
+      }
+    }
   }
 
   return NS_OK;
 }
 
+NS_IMETHODIMP
+TabChild::OnStateChange(nsIWebProgress* aWebProgress,
+                        nsIRequest* aRequest,
+                        uint32_t aStateFlags,
+                        nsresult aStatus)
+{
+  NS_NOTREACHED("not implemented in TabChild");
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+TabChild::OnProgressChange(nsIWebProgress* aWebProgress,
+                           nsIRequest* aRequest,
+                           int32_t aCurSelfProgress,
+                           int32_t aMaxSelfProgress,
+                           int32_t aCurTotalProgress,
+                           int32_t aMaxTotalProgress)
+{
+  NS_NOTREACHED("not implemented in TabChild");
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+TabChild::OnLocationChange(nsIWebProgress* aWebProgress,
+                           nsIRequest* aRequest,
+                           nsIURI *aLocation,
+                           uint32_t aFlags)
+{
+  if (!IsAsyncPanZoomEnabled()) {
+    return NS_OK;
+  }
+
+  nsCOMPtr<nsIDOMWindow> window;
+  aWebProgress->GetDOMWindow(getter_AddRefs(window));
+  if (!window) {
+    return NS_OK;
+  }
+
+  nsCOMPtr<nsIDOMDocument> progressDoc;
+  window->GetDocument(getter_AddRefs(progressDoc));
+  if (!progressDoc) {
+    return NS_OK;
+  }
+
+  nsCOMPtr<nsIDOMDocument> domDoc;
+  mWebNav->GetDocument(getter_AddRefs(domDoc));
+  if (!domDoc || !SameCOMIdentity(domDoc, progressDoc)) {
+    return NS_OK;
+  }
+
+  nsCOMPtr<nsIURIFixup> urifixup(do_GetService(NS_URIFIXUP_CONTRACTID));
+  if (!urifixup) {
+    return NS_OK;
+  }
+
+  nsCOMPtr<nsIURI> exposableURI;
+  urifixup->CreateExposableURI(aLocation, getter_AddRefs(exposableURI));
+  if (!exposableURI) {
+    return NS_OK;
+  }
+
+  if (!(aFlags & nsIWebProgressListener::LOCATION_CHANGE_SAME_DOCUMENT)) {
+    mContentDocumentIsDisplayed = false;
+  } else if (mLastURI != nullptr) {
+    bool exposableEqualsLast, exposableEqualsNew;
+    exposableURI->Equals(mLastURI.get(), &exposableEqualsLast);
+    exposableURI->Equals(aLocation, &exposableEqualsNew);
+    if (exposableEqualsLast && !exposableEqualsNew) {
+      mContentDocumentIsDisplayed = false;
+    }
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+TabChild::OnStatusChange(nsIWebProgress* aWebProgress,
+                         nsIRequest* aRequest,
+                         nsresult aStatus,
+                         const PRUnichar* aMessage)
+{
+  NS_NOTREACHED("not implemented in TabChild");
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+TabChild::OnSecurityChange(nsIWebProgress* aWebProgress,
+                           nsIRequest* aRequest,
+                           uint32_t aState)
+{
+  NS_NOTREACHED("not implemented in TabChild");
+  return NS_OK;
+}
+
+void
+TabChild::SetCSSViewport(float aWidth, float aHeight)
+{
+  mOldViewportWidth = aWidth;
+
+  if (mContentDocumentIsDisplayed) {
+    nsCOMPtr<nsIDOMWindowUtils> utils(GetDOMWindowUtils());
+    utils->SetCSSViewport(aWidth, aHeight);
+  }
+}
+
+void
+TabChild::HandlePossibleMetaViewportChange()
+{
+  if (!IsAsyncPanZoomEnabled()) {
+    return;
+  }
+
+  nsCOMPtr<nsIDOMDocument> domDoc;
+  mWebNav->GetDocument(getter_AddRefs(domDoc));
+  nsCOMPtr<nsIDocument> document(do_QueryInterface(domDoc));
+
+  nsCOMPtr<nsIDOMWindowUtils> utils(GetDOMWindowUtils());
+
+  ViewportInfo viewportMetaData =
+    nsContentUtils::GetViewportInfo(document, mInnerSize.width, mInnerSize.height);
+  SendUpdateZoomConstraints(viewportMetaData.allowZoom,
+                            viewportMetaData.minZoom,
+                            viewportMetaData.maxZoom);
+
+  float screenW = mInnerSize.width;
+  float screenH = mInnerSize.height;
+  float viewportW = viewportMetaData.width;
+  float viewportH = viewportMetaData.height;
+
+  // We're not being displayed in any way; don't bother doing anything because
+  // that will just confuse future adjustments.
+  if (!screenW || !screenH) {
+    return;
+  }
+
+  // Make sure the viewport height is not shorter than the window when the page
+  // is zoomed out to show its full width. Note that before we set the viewport
+  // width, the "full width" of the page isn't properly defined, so that's why
+  // we have to call SetCSSViewport twice - once to set the width, and the
+  // second time to figure out the height based on the layout at that width.
+  float oldBrowserWidth = mOldViewportWidth;
+  mLastMetrics.mViewport.width = viewportMetaData.width;
+  mLastMetrics.mViewport.height = viewportMetaData.height;
+  if (!oldBrowserWidth) {
+    oldBrowserWidth = kDefaultViewportSize.width;
+  }
+  SetCSSViewport(viewportW, viewportH);
+
+  // If this page has not been painted yet, then this must be getting run
+  // because a meta-viewport element was added (via the DOMMetaAdded handler).
+  // in this case, we should not do anything that forces a reflow (see bug
+  // 759678) such as requesting the page size or sending a viewport update. this
+  // code will get run again in the before-first-paint handler and that point we
+  // will run though all of it. the reason we even bother executing up to this
+  // point on the DOMMetaAdded handler is so that scripts that use
+  // window.innerWidth before they are painted have a correct value (bug
+  // 771575).
+  if (!mContentDocumentIsDisplayed) {
+    return;
+  }
+
+  float minScale = 1.0f;
+
+  nsCOMPtr<nsIDOMElement> htmlDOMElement = do_QueryInterface(document->GetHtmlElement());
+  nsCOMPtr<nsIDOMElement> bodyDOMElement = do_QueryInterface(document->GetBodyElement());
+
+  PRInt32 htmlWidth = 0, htmlHeight = 0;
+  if (htmlDOMElement) {
+    htmlDOMElement->GetScrollWidth(&htmlWidth);
+    htmlDOMElement->GetScrollHeight(&htmlHeight);
+  }
+  PRInt32 bodyWidth = 0, bodyHeight = 0;
+  if (bodyDOMElement) {
+    bodyDOMElement->GetScrollWidth(&bodyWidth);
+    bodyDOMElement->GetScrollHeight(&bodyHeight);
+  }
+
+  float pageWidth = NS_MAX(htmlWidth, bodyWidth);
+  float pageHeight = NS_MAX(htmlHeight, bodyHeight);
+
+  minScale = mInnerSize.width / pageWidth;
+  minScale = clamped((double)minScale, viewportMetaData.minZoom, viewportMetaData.maxZoom);
+
+  viewportH = NS_MAX(viewportH, screenH / minScale);
+  SetCSSViewport(viewportW, viewportH);
+
+  // This change to the zoom accounts for all types of changes I can conceive:
+  // 1. screen size changes, CSS viewport does not (pages with no meta viewport
+  //    or a fixed size viewport)
+  // 2. screen size changes, CSS viewport also does (pages with a device-width
+  //    viewport)
+  // 3. screen size remains constant, but CSS viewport changes (meta viewport
+  //    tag is added or removed)
+  // 4. neither screen size nor CSS viewport changes
+  //
+  // In all of these cases, we maintain how much actual content is visible
+  // within the screen width. Note that "actual content" may be different with
+  // respect to CSS pixels because of the CSS viewport size changing.
+  int32_t oldScreenWidth = mLastMetrics.mCompositionBounds.width;
+  if (!oldScreenWidth) {
+    oldScreenWidth = mInnerSize.width;
+  }
+  float zoomScale = (screenW * oldBrowserWidth) / (oldScreenWidth * viewportW);
+
+  float zoom = clamped(double(mLastMetrics.mZoom.width * zoomScale),
+                       viewportMetaData.minZoom, viewportMetaData.maxZoom);
+  utils->SetResolution(zoom, zoom);
+
+  FrameMetrics metrics(mLastMetrics);
+  metrics.mViewport = gfx::Rect(0.0f, 0.0f, viewportW, viewportH);
+  metrics.mScrollableRect = gfx::Rect(0.0f, 0.0f, pageWidth, pageHeight);
+  metrics.mCompositionBounds = nsIntRect(0, 0, mInnerSize.width, mInnerSize.height);
+  metrics.mZoom.width = metrics.mZoom.height =
+    metrics.mResolution.width = metrics.mResolution.height = zoom;
+  metrics.mDisplayPort = AsyncPanZoomController::CalculatePendingDisplayPort(
+    // The page must have been refreshed in some way such as a new document or
+    // new CSS viewport, so we know that there's no velocity, acceleration, and
+    // we have no idea how long painting will take.
+    metrics, gfx::Point(0.0f, 0.0f), gfx::Point(0.0f, 0.0f), 0.0);
+  // Force a repaint with these metrics. This, among other things, sets the
+  // displayport, so we start with async painting.
+  RecvUpdateFrame(metrics);
+}
+
 nsresult
 TabChild::Init()
 {
@@ -238,6 +519,12 @@ TabChild::Init()
                "DNS prefetching enable step.");
   }
 
+  nsCOMPtr<nsIDocShell> docShell = do_GetInterface(mWebNav);
+  MOZ_ASSERT(docShell);
+  nsCOMPtr<nsIWebProgress> webProgress = do_GetInterface(docShell);
+  NS_ENSURE_TRUE(webProgress, NS_ERROR_FAILURE);
+  webProgress->AddProgressListener(this, nsIWebProgress::NOTIFY_LOCATION);
+
   return NS_OK;
 }
 
@@ -266,8 +553,11 @@ NS_INTERFACE_MAP_BEGIN(TabChild)
   NS_INTERFACE_MAP_ENTRY(nsIWebBrowserChromeFocus)
   NS_INTERFACE_MAP_ENTRY(nsIInterfaceRequestor)
   NS_INTERFACE_MAP_ENTRY(nsIWindowProvider)
+  NS_INTERFACE_MAP_ENTRY(nsIDOMEventListener)
+  NS_INTERFACE_MAP_ENTRY(nsIWebProgressListener)
   NS_INTERFACE_MAP_ENTRY(nsITabChild)
   NS_INTERFACE_MAP_ENTRY(nsIDialogCreator)
+  NS_INTERFACE_MAP_ENTRY(nsIObserver)
   NS_INTERFACE_MAP_ENTRY(nsSupportsWeakReference)
 NS_INTERFACE_MAP_END
 
@@ -799,6 +1089,7 @@ TabChild::RecvUpdateDimensions(const nsRect& rect, const nsIntSize& size)
     mOuterRect.width = rect.width;
     mOuterRect.height = rect.height;
 
+    mInnerSize = size;
     mWidget->Resize(0, 0, size.width, size.height,
                     true);
 
@@ -806,6 +1097,8 @@ TabChild::RecvUpdateDimensions(const nsRect& rect, const nsIntSize& size)
     baseWin->SetPositionAndSize(0, 0, size.width, size.height,
                                 true);
 
+    HandlePossibleMetaViewportChange();
+
     return true;
 }
 
@@ -842,33 +1135,63 @@ TabChild::RecvUpdateFrame(const FrameMetrics& aFrameMetrics)
         return true;
     }
 
+    // The BrowserElementScrolling helper must know about these updated metrics
+    // for other functions it performs, such as double tap handling.
     nsCString data;
-    data += nsPrintfCString("{ \"x\" : %d", NS_lround(aFrameMetrics.mViewportScrollOffset.x));
-    data += nsPrintfCString(", \"y\" : %d", NS_lround(aFrameMetrics.mViewportScrollOffset.y));
+    data += nsPrintfCString("{ \"x\" : %d", NS_lround(aFrameMetrics.mScrollOffset.x));
+    data += nsPrintfCString(", \"y\" : %d", NS_lround(aFrameMetrics.mScrollOffset.y));
     // We don't treat the x and y scales any differently for this
     // semi-platform-specific code.
-    data += nsPrintfCString(", \"zoom\" : %f", aFrameMetrics.mResolution.width);
+    data += nsPrintfCString(", \"zoom\" : %f", aFrameMetrics.mZoom.width);
     data += nsPrintfCString(", \"displayPort\" : ");
-        data += nsPrintfCString("{ \"left\" : %d", aFrameMetrics.mDisplayPort.X());
-        data += nsPrintfCString(", \"top\" : %d", aFrameMetrics.mDisplayPort.Y());
-        data += nsPrintfCString(", \"width\" : %d", aFrameMetrics.mDisplayPort.Width());
-        data += nsPrintfCString(", \"height\" : %d", aFrameMetrics.mDisplayPort.Height());
+        data += nsPrintfCString("{ \"x\" : %f", aFrameMetrics.mDisplayPort.x);
+        data += nsPrintfCString(", \"y\" : %f", aFrameMetrics.mDisplayPort.y);
+        data += nsPrintfCString(", \"width\" : %f", aFrameMetrics.mDisplayPort.width);
+        data += nsPrintfCString(", \"height\" : %f", aFrameMetrics.mDisplayPort.height);
         data += nsPrintfCString(", \"resolution\" : %f", aFrameMetrics.mResolution.width);
         data += nsPrintfCString(" }");
-    data += nsPrintfCString(", \"screenSize\" : ");
-        data += nsPrintfCString("{ \"width\" : %d", aFrameMetrics.mViewport.width);
-        data += nsPrintfCString(", \"height\" : %d", aFrameMetrics.mViewport.height);
+    data += nsPrintfCString(", \"compositionBounds\" : ");
+        data += nsPrintfCString("{ \"x\" : %d", aFrameMetrics.mCompositionBounds.x);
+        data += nsPrintfCString(", \"y\" : %d", aFrameMetrics.mCompositionBounds.y);
+        data += nsPrintfCString(", \"width\" : %d", aFrameMetrics.mCompositionBounds.width);
+        data += nsPrintfCString(", \"height\" : %d", aFrameMetrics.mCompositionBounds.height);
         data += nsPrintfCString(" }");
     data += nsPrintfCString(", \"cssPageRect\" : ");
-        data += nsPrintfCString("{ \"x\" : %f", aFrameMetrics.mCSSContentRect.x);
-        data += nsPrintfCString(", \"y\" : %f", aFrameMetrics.mCSSContentRect.y);
-        data += nsPrintfCString(", \"width\" : %f", aFrameMetrics.mCSSContentRect.width);
-        data += nsPrintfCString(", \"height\" : %f", aFrameMetrics.mCSSContentRect.height);
+        data += nsPrintfCString("{ \"x\" : %f", aFrameMetrics.mScrollableRect.x);
+        data += nsPrintfCString(", \"y\" : %f", aFrameMetrics.mScrollableRect.y);
+        data += nsPrintfCString(", \"width\" : %f", aFrameMetrics.mScrollableRect.width);
+        data += nsPrintfCString(", \"height\" : %f", aFrameMetrics.mScrollableRect.height);
         data += nsPrintfCString(" }");
     data += nsPrintfCString(" }");
 
     DispatchMessageManagerMessage(NS_LITERAL_STRING("Viewport:Change"), data);
 
+    nsCOMPtr<nsIDOMWindowUtils> utils(GetDOMWindowUtils());
+    nsCOMPtr<nsIDOMWindow> window = do_GetInterface(mWebNav);
+
+    utils->SetScrollPositionClampingScrollPortSize(
+      aFrameMetrics.mCompositionBounds.width / aFrameMetrics.mZoom.width,
+      aFrameMetrics.mCompositionBounds.height / aFrameMetrics.mZoom.width);
+    window->ScrollTo(aFrameMetrics.mScrollOffset.x,
+                     aFrameMetrics.mScrollOffset.y);
+    utils->SetResolution(aFrameMetrics.mResolution.width,
+                         aFrameMetrics.mResolution.width);
+
+    nsCOMPtr<nsIDOMDocument> domDoc;
+    nsCOMPtr<nsIDOMElement> docElement;
+    mWebNav->GetDocument(getter_AddRefs(domDoc));
+    if (domDoc) {
+      domDoc->GetDocumentElement(getter_AddRefs(docElement));
+      if (docElement) {
+        utils->SetDisplayPortForElement(
+          aFrameMetrics.mDisplayPort.x, aFrameMetrics.mDisplayPort.y,
+          aFrameMetrics.mDisplayPort.width, aFrameMetrics.mDisplayPort.height,
+          docElement);
+      }
+    }
+
+    mLastMetrics = aFrameMetrics;
+
     return true;
 }
 
@@ -926,8 +1249,7 @@ TabChild::RecvMouseEvent(const nsString& aType,
                          const int32_t&  aModifiers,
                          const bool&     aIgnoreRootScrollFrame)
 {
-  nsCOMPtr<nsPIDOMWindow> window = do_GetInterface(mWebNav);
-  nsCOMPtr<nsIDOMWindowUtils> utils = do_GetInterface(window);
+  nsCOMPtr<nsIDOMWindowUtils> utils(GetDOMWindowUtils());
   NS_ENSURE_TRUE(utils, true);
   utils->SendMouseEvent(aType, aX, aY, aButton, aClickCount, aModifiers,
                         aIgnoreRootScrollFrame, 0, 0);
@@ -1028,8 +1350,7 @@ TabChild::RecvKeyEvent(const nsString& aType,
                        const int32_t& aModifiers,
                        const bool& aPreventDefault)
 {
-  nsCOMPtr<nsPIDOMWindow> window = do_GetInterface(mWebNav);
-  nsCOMPtr<nsIDOMWindowUtils> utils = do_GetInterface(window);
+  nsCOMPtr<nsIDOMWindowUtils> utils(GetDOMWindowUtils());
   NS_ENSURE_TRUE(utils, true);
   bool ignored = false;
   utils->SendKeyEvent(aType, aKeyCode, aCharCode,
@@ -1279,6 +1600,13 @@ TabChild::RecvDestroy()
     );
   }
 
+  nsCOMPtr<nsIObserverService> observerService =
+    do_GetService(NS_OBSERVERSERVICE_CONTRACTID);
+
+  observerService->RemoveObserver(this, CANCEL_DEFAULT_PAN_ZOOM);
+  observerService->RemoveObserver(this, BROWSER_ZOOM_TO_RECT);
+  observerService->RemoveObserver(this, BEFORE_FIRST_PAINT);
+
   // XXX what other code in ~TabChild() should we be running here?
   DestroyWindow();
 
@@ -1325,6 +1653,8 @@ TabChild::InitTabChildGlobal(FrameScriptLoading aScriptLoading)
     nsCOMPtr<nsPIWindowRoot> root = do_QueryInterface(chromeHandler);
     NS_ENSURE_TRUE(root, false);
     root->SetParentTarget(scope);
+
+    chromeHandler->AddEventListener(NS_LITERAL_STRING("DOMMetaAdded"), this, false);
   }
 
   if (aScriptLoading != DONT_LOAD_SCRIPTS && !mTriedBrowserInit) {
@@ -1389,10 +1719,13 @@ TabChild::InitRenderingState()
 
     if (observerService) {
         observerService->AddObserver(this,
-                                     "cancel-default-pan-zoom",
+                                     CANCEL_DEFAULT_PAN_ZOOM,
                                      false);
         observerService->AddObserver(this,
-                                     "browser-zoom-to-rect",
+                                     BROWSER_ZOOM_TO_RECT,
+                                     false);
+        observerService->AddObserver(this,
+                                     BEFORE_FIRST_PAINT,
                                      false);
     }
 

dom/ipc/TabChild.h

@@ -36,9 +36,11 @@
 #include "nsNetUtil.h"
 #include "nsFrameMessageManager.h"
 #include "nsIScriptContext.h"
+#include "nsIWebProgressListener.h"
 #include "nsDOMEventTargetHelper.h"
 #include "nsIDialogCreator.h"
 #include "nsIDialogParamBlock.h"
+#include "nsIDOMWindowUtils.h"
 #include "nsIPresShell.h"
 #include "nsIPrincipal.h"
 #include "nsIScriptObjectPrincipal.h"
@@ -141,6 +143,8 @@ class TabChild : public PBrowserChild,
                  public nsIWebBrowserChromeFocus,
                  public nsIInterfaceRequestor,
                  public nsIWindowProvider,
+                 public nsIDOMEventListener,
+                 public nsIWebProgressListener,
                  public nsSupportsWeakReference,
                  public nsIDialogCreator,
                  public nsITabChild,
@@ -175,6 +179,8 @@ public:
     NS_DECL_NSIWEBBROWSERCHROMEFOCUS
     NS_DECL_NSIINTERFACEREQUESTOR
     NS_DECL_NSIWINDOWPROVIDER
+    NS_DECL_NSIDOMEVENTLISTENER
+    NS_DECL_NSIWEBPROGRESSLISTENER
     NS_DECL_NSIDIALOGCREATOR
     NS_DECL_NSITABCHILD
     NS_DECL_NSIOBSERVER
@@ -328,6 +334,16 @@ private:
     // Call RecvShow(nsIntSize(0, 0)) and block future calls to RecvShow().
     void DoFakeShow();
 
+    // Wrapper for nsIDOMWindowUtils.setCSSViewport(). This updates some state
+    // variables local to this class before setting it.
+    void SetCSSViewport(float aX, float aY);
+
+    // Recalculates the display state, including the CSS viewport. This should
+    // be called whenever we believe the meta viewport data on a document may
+    // have changed. If it didn't change, this function doesn't do anything.
+    // However, it should not be called all the time as it is fairly expensive.
+    void HandlePossibleMetaViewportChange();
+
     // Wraps up a JSON object as a structured clone and sends it to the browser
     // chrome script.
     //
@@ -347,18 +363,30 @@ private:
                               bool* aWindowIsNew,
                               nsIDOMWindow** aReturn);
 
+    nsIDOMWindowUtils* GetDOMWindowUtils()
+    {
+        nsCOMPtr<nsPIDOMWindow> window = do_GetInterface(mWebNav);
+        nsCOMPtr<nsIDOMWindowUtils> utils = do_GetInterface(window);
+        return utils;
+    }
+
     nsCOMPtr<nsIWebNavigation> mWebNav;
     nsCOMPtr<nsIWidget> mWidget;
+    nsCOMPtr<nsIURI> mLastURI;
+    FrameMetrics mLastMetrics;
     RenderFrameChild* mRemoteFrame;
     nsRefPtr<TabChildGlobal> mTabChildGlobal;
     uint32_t mChromeFlags;
     nsIntRect mOuterRect;
+    nsIntSize mInnerSize;
+    float mOldViewportWidth;
     nscolor mLastBackgroundColor;
     ScrollingBehavior mScrolling;
     uint32_t mAppId;
     bool mDidFakeShow;
     bool mIsBrowserElement;
     bool mNotified;
+    bool mContentDocumentIsDisplayed;
     bool mTriedBrowserInit;
 
     DISALLOW_EVIL_CONSTRUCTORS(TabChild);

dom/ipc/TabParent.cpp

@@ -83,6 +83,7 @@ TabParent::TabParent(mozIApplication* aApp, bool aIsBrowserElement)
   , mIMECompositionStart(0)
   , mIMESeqno(0)
   , mEventCaptureDepth(0)
+  , mDimensions(0, 0)
   , mDPI(0)
   , mIsBrowserElement(aIsBrowserElement)
   , mShown(false)
@@ -229,6 +230,7 @@ TabParent::Show(const nsIntSize& size)
 {
     // sigh
     mShown = true;
+    mDimensions = size;
     unused << SendShow(size);
 }
 
@@ -239,6 +241,7 @@ TabParent::UpdateDimensions(const nsRect& rect, const nsIntSize& size)
   if (RenderFrameParent* rfp = GetRenderFrame()) {
     rfp->NotifyDimensionsChanged(size.width, size.height);
   }
+  mDimensions = size;
 }
 
 void
@@ -1172,6 +1175,21 @@ TabParent::RecvBrowserFrameOpenWindow(PBrowserParent* aOpener,
   return true;
 }
 
+bool
+TabParent::RecvPRenderFrameConstructor(PRenderFrameParent* actor,
+                                       ScrollingBehavior* scrolling,
+                                       LayersBackend* backend,
+                                       int32_t* maxTextureSize,
+                                       uint64_t* layersId)
+{
+  RenderFrameParent* rfp = GetRenderFrame();
+  if (mDimensions != nsIntSize() && rfp) {
+    rfp->NotifyDimensionsChanged(mDimensions.width, mDimensions.height);
+  }
+
+  return true;
+}
+
 bool
 TabParent::RecvZoomToRect(const gfxRect& aRect)
 {
@@ -1181,6 +1199,17 @@ TabParent::RecvZoomToRect(const gfxRect& aRect)
   return true;
 }
 
+bool
+TabParent::RecvUpdateZoomConstraints(const bool& aAllowZoom,
+                                     const float& aMinZoom,
+                                     const float& aMaxZoom)
+{
+  if (RenderFrameParent* rfp = GetRenderFrame()) {
+    rfp->UpdateZoomConstraints(aAllowZoom, aMinZoom, aMaxZoom);
+  }
+  return true;
+}
+
 bool
 TabParent::RecvContentReceivedTouch(const bool& aPreventDefault)
 {

dom/ipc/TabParent.h

@@ -94,6 +94,11 @@ public:
 
     virtual bool RecvMoveFocus(const bool& aForward);
     virtual bool RecvEvent(const RemoteDOMEvent& aEvent);
+    virtual bool RecvPRenderFrameConstructor(PRenderFrameParent* actor,
+                                             ScrollingBehavior* scrolling,
+                                             LayersBackend* backend,
+                                             int32_t* maxTextureSize,
+                                             uint64_t* layersId);
     virtual bool RecvBrowserFrameOpenWindow(PBrowserParent* aOpener,
                                             const nsString& aURL,
                                             const nsString& aName,
@@ -131,6 +136,9 @@ public:
     virtual bool RecvGetDPI(float* aValue);
     virtual bool RecvGetWidgetNativeData(WindowsHandle* aValue);
     virtual bool RecvZoomToRect(const gfxRect& aRect);
+    virtual bool RecvUpdateZoomConstraints(const bool& aAllowZoom,
+                                           const float& aMinZoom,
+                                           const float& aMaxZoom);
     virtual bool RecvContentReceivedTouch(const bool& aPreventDefault);
     virtual PContentDialogParent* AllocPContentDialog(const uint32_t& aType,
                                                       const nsCString& aName,
@@ -269,6 +277,7 @@ protected:
     // The number of event series we're currently capturing.
     int32_t mEventCaptureDepth;
 
+    nsIntSize mDimensions;
     float mDPI;
     bool mIsBrowserElement;
     bool mShown;

dom/network/interfaces/nsIMobileConnectionProvider.idl

@@ -14,7 +14,7 @@ interface nsIDOMWindow;
  * XPCOM component (in the content process) that provides the mobile
  * network information.
  */
-[scriptable, uuid(63787ba1-5091-450b-8810-d321a8b4f77a)]
+[scriptable, uuid(bc1a82aa-2a1f-4a27-a5e7-614d06b72e0a)]
 interface nsIMobileConnectionProvider : nsISupports
 {
   readonly attribute DOMString cardState;
@@ -40,4 +40,6 @@ interface nsIMobileConnectionProvider : nsISupports
   void sendStkMenuSelection(in nsIDOMWindow   window,
                             in unsigned short itemIdentifier,
                             in boolean        helpRequested);
+  void sendStkEventDownload(in nsIDOMWindow window,
+                            in jsval        event);
 };

dom/system/gonk/RILContentHelper.js

@@ -453,6 +453,15 @@ RILContentHelper.prototype = {
                                                        helpRequested: helpRequested});
   },
 
+  sendStkEventDownload: function sendStkEventDownload(window,
+                                                      event) {
+    if (window == null) {
+      throw Components.Exception("Can't get window object",
+                                  Cr.NS_ERROR_UNEXPECTED);
+    }
+    cpmm.sendAsyncMessage("RIL:SendStkEventDownload", {event: event});
+  },
+
   _telephonyCallbacks: null,
   _voicemailCallbacks: null,
   _enumerateTelephonyCallbacks: null,

dom/system/gonk/RadioInterfaceLayer.js

@@ -73,6 +73,7 @@ const RIL_IPC_MOBILECONNECTION_MSG_NAMES = [
   "RIL:CancelUSSD",
   "RIL:SendStkResponse",
   "RIL:SendStkMenuSelection",
+  "RIL:SendStkEventDownload",
 ];
 
 XPCOMUtils.defineLazyServiceGetter(this, "gSmsService",
@@ -384,6 +385,9 @@ RadioInterfaceLayer.prototype = {
       case "RIL:SendStkMenuSelection":
         this.sendStkMenuSelection(msg.json);
         break;
+      case "RIL:SendStkEventDownload":
+        this.sendStkEventDownload(msg.json);
+        break;
     }
   },
 
@@ -1530,6 +1534,11 @@ RadioInterfaceLayer.prototype = {
     this.worker.postMessage(message);
   },
 
+  sendStkEventDownload: function sendStkEventDownload(message) {
+    message.rilMessageType = "sendStkEventDownload";
+    this.worker.postMessage(message);
+  },
+
   get microphoneMuted() {
     return gAudioManager.microphoneMuted;
   },

dom/system/gonk/ril_consts.js

@@ -537,11 +537,15 @@ const COMPREHENSIONTLV_TAG_ALPHA_ID = 0x05;
 const COMPREHENSIONTLV_TAG_ADDRESS = 0x06;
 const COMPREHENSIONTLV_TAG_SMS_TPDU = 0x0b;
 const COMPREHENSIONTLV_TAG_TEXT_STRING = 0x0d;
+const COMPREHENSIONTLV_TAG_TONE = 0x0e;
 const COMPREHENSIONTLV_TAG_ITEM = 0x0f;
 const COMPREHENSIONTLV_TAG_ITEM_ID = 0x10;
 const COMPREHENSIONTLV_TAG_RESPONSE_LENGTH = 0x11;
+const COMPREHENSIONTLV_TAG_FILE_LIST = 0x12;
+const COMPREHENSIONTLV_TAG_LOCATION_INFO = 0x13;
 const COMPREHENSIONTLV_TAG_HELP_REQUEST = 0x15;
 const COMPREHENSIONTLV_TAG_DEFAULT_TEXT = 0x17;
+const COMPREHENSIONTLV_TAG_LOCATION_STATUS = 0x1b;
 const COMPREHENSIONTLV_TAG_EVENT_LIST = 0x19;
 const COMPREHENSIONTLV_TAG_ICON_ID = 0x1e;
 const COMPREHENSIONTLV_TAG_ICON_ID_LIST = 0x1f;
@@ -558,6 +562,8 @@ const STK_DEVICE_ID_NETWORK = 0x83;
 
 // STK Proactive commands.
 const STK_CMD_REFRESH = 0x01;
+const STK_CMD_POLL_INTERVAL = 0x03;
+const STK_CMD_POLL_OFF = 0x04;
 const STK_CMD_SET_UP_EVENT_LIST = 0x05;
 const STK_CMD_SET_UP_CALL = 0x10;
 const STK_CMD_SEND_SS = 0x11;
@@ -565,6 +571,7 @@ const STK_CMD_SEND_USSD = 0x12;
 const STK_CMD_SEND_SMS = 0x13;
 const STK_CMD_SEND_DTMF = 0x14;
 const STK_CMD_LAUNCH_BROWSER = 0x15;
+const STK_CMD_PLAY_TONE = 0x20;
 const STK_CMD_DISPLAY_TEXT = 0x21;
 const STK_CMD_GET_INKEY = 0x22;
 const STK_CMD_GET_INPUT = 0x23;
@@ -725,6 +732,36 @@ const STK_EVENT_TYPE_LOCAL_CONNECTION = 0x0d;
 const STK_EVENT_TYPE_NETWORK_SEARCH_MODE_CHANGED = 0x0e;
 const STK_EVENT_TYPE_BROWSING_STATUS = 0x0f;
 
+// STK Service state of Location Status.
+const STK_SERVICE_STATE_NORMAL      = 0x00;
+const STK_SERVICE_STATE_LIMITED     = 0x01;
+const STK_SERVICE_STATE_UNAVAILABLE = 0x02;
+
+// Refresh mode.
+const STK_REFRESH_NAA_INIT_AND_FULL_FILE_CHANGE = 0x00;
+const STK_REFRESH_FILE_CHANGE = 0x01;
+const STK_REFRESH_NAA_INIT_AND_FILE_CHANGE = 0x02;
+const STK_REFRESH_NAA_INIT = 0x03;
+const STK_REFRESH_UICC_RESET = 0x04;
+
+// Tone type.
+const STK_TONE_TYPE_DIAL_TONE                = 0x01;
+const STK_TONE_TYPE_CALLED_SUBSCRIBER_BUSY   = 0x02;
+const STK_TONE_TYPE_CONGESTION               = 0x03;
+const STK_TONE_TYPE_RADIO_PATH_ACK           = 0x04;
+const STK_TONE_TYPE_RADIO_PATH_NOT_AVAILABLE = 0x05;
+const STK_TONE_TYPE_ERROR                    = 0x06;
+const STK_TONE_TYPE_CALL_WAITING_TONE        = 0x07;
+const STK_TONE_TYPE_RINGING_TONE             = 0x08;
+const STK_TONE_TYPE_GENERAL_BEEP             = 0x10;
+const STK_TONE_TYPE_POSITIVE_ACK_TONE        = 0x11;
+const STK_TONE_TYPE_NEGATIVE_ACK_TONE        = 0x12;
+
+// Time unit.
+const STK_TIME_UNIT_MINUTE       = 0x00;
+const STK_TIME_UNIT_SECOND       = 0x01;
+const STK_TIME_UNIT_TENTH_SECOND = 0x02;
+
 /**
  * (U)SIM Services.
  *

dom/system/gonk/ril_worker.js

@@ -51,6 +51,16 @@ const PARCEL_SIZE_SIZE = UINT32_SIZE;
 
 const PDU_HEX_OCTET_SIZE = 4;
 
+const TLV_COMMAND_DETAILS_SIZE = 5;
+const TLV_DEVICE_ID_SIZE = 4;
+const TLV_RESULT_SIZE = 3;
+const TLV_ITEM_ID_SIZE = 3;
+const TLV_HELP_REQUESTED_SIZE = 2;
+const TLV_EVENT_LIST_SIZE = 3;
+const TLV_LOCATION_STATUS_SIZE = 3;
+const TLV_LOCATION_INFO_GSM_SIZE = 9;
+const TLV_LOCATION_INFO_UMTS_SIZE = 11;
+
 const DEFAULT_EMERGENCY_NUMBERS = ["112", "911"];
 
 let RILQUIRKS_CALLSTATE_EXTRA_UINT32 = libcutils.property_get("ro.moz.ril.callstate_extra_int");
@@ -2257,10 +2267,10 @@ let RIL = {
     }
 
     // 1 octets = 2 chars.
-    let size = (5 + /* Size of Command Details TLV */
-                4 + /* Size of Device Identifier TLV */
-                3 + /* Size of Result */
-                (response.itemIdentifier ? 3 : 0) +
+    let size = (TLV_COMMAND_DETAILS_SIZE +
+                TLV_DEVICE_ID_SIZE +
+                TLV_RESULT_SIZE +
+                (response.itemIdentifier ? TLV_ITEM_ID_SIZE : 0) +
                 (textLen ? textLen + 3 : 0)) * 2;
     Buf.writeUint32(size);
 
@@ -2365,6 +2375,29 @@ let RIL = {
     this.sendICCEnvelopeCommand(command);
   },
 
+  /**
+   * Send STK Envelope(Event Download) command.
+   * @param event
+   */
+  sendStkEventDownload: function sendStkEventDownload(command) {
+    command.tag = BER_EVENT_DOWNLOAD_TAG;
+    command.eventList = command.event.eventType;
+    switch (command.eventList) {
+      case STK_EVENT_TYPE_LOCATION_STATUS:
+        command.deviceId = {
+          sourceId :STK_DEVICE_ID_ME,
+          destinationId: STK_DEVICE_ID_SIM
+        };
+        command.locationStatus = command.event.locationStatus;
+        // Location info should only be provided when locationStatus is normal.
+        if (command.locationStatus == STK_SERVICE_STATE_NORMAL) {
+          command.locationInfo = command.event.locationInfo;
+        }
+        break;
+    }
+    this.sendICCEnvelopeCommand(command);
+  },
+
   /**
    * Send REQUEST_STK_SEND_ENVELOPE_COMMAND to ICC.
    *
@@ -2372,12 +2405,25 @@ let RIL = {
    * @patam deviceId
    * @param [optioanl] itemIdentifier
    * @param [optional] helpRequested
+   * @param [optional] eventList
+   * @param [optional] locationStatus
+   * @param [optional] locationInfo
    */
   sendICCEnvelopeCommand: function sendICCEnvelopeCommand(options) {
+    if (DEBUG) {
+      debug("Stk Envelope " + JSON.stringify(options));
+    }
     let token = Buf.newParcel(REQUEST_STK_SEND_ENVELOPE_COMMAND);
-    let berLen = 4 + /* Size of Device Identifier TLV */
-                 (options.itemIdentifier ? 3 : 0) +
-                 (options.helpRequested ? 2 : 0);
+    let berLen = TLV_DEVICE_ID_SIZE + /* Size of Device Identifier TLV */
+                 (options.itemIdentifier ? TLV_ITEM_ID_SIZE : 0) +
+                 (options.helpRequested ? TLV_HELP_REQUESTED_SIZE : 0) +
+                 (options.eventList ? TLV_EVENT_LIST_SIZE : 0) +
+                 (options.locationStatus ? TLV_LOCATION_STATUS_SIZE : 0) +
+                 (options.locationInfo ?
+                    (options.locationInfo.gsmCellId > 0xffff ?
+                      TLV_LOCATION_INFO_UMTS_SIZE :
+                      TLV_LOCATION_INFO_GSM_SIZE) :
+                    0);
     let size = (2 + berLen) * 2;
 
     Buf.writeUint32(size);
@@ -2409,6 +2455,28 @@ let RIL = {
       // Help Request doesn't have value
     }
 
+    // Event List
+    if (options.eventList) {
+      GsmPDUHelper.writeHexOctet(COMPREHENSIONTLV_TAG_EVENT_LIST |
+                                 COMPREHENSIONTLV_FLAG_CR);
+      GsmPDUHelper.writeHexOctet(1);
+      GsmPDUHelper.writeHexOctet(options.eventList);
+    }
+
+    // Location Status
+    if (options.locationStatus) {
+      let len = options.locationStatus.length;
+      GsmPDUHelper.writeHexOctet(COMPREHENSIONTLV_TAG_LOCATION_STATUS |
+                                 COMPREHENSIONTLV_FLAG_CR);
+      GsmPDUHelper.writeHexOctet(1);
+      GsmPDUHelper.writeHexOctet(options.locationStatus);
+    }
+
+    // Location Info
+    if (options.locationInfo) {
+      ComprehensionTlvHelper.writeLocationInfoTlv(options.locationInfo);
+    }
+
     Buf.writeUint32(0);
     Buf.sendParcel();
   },
@@ -6006,6 +6074,15 @@ let StkCommandParamsFactory = {
   createParam: function createParam(cmdDetails, ctlvs) {
     let param;
     switch (cmdDetails.typeOfCommand) {
+      case STK_CMD_REFRESH:
+        param = this.processRefresh(cmdDetails, ctlvs);
+        break;
+      case STK_CMD_POLL_INTERVAL:
+        param = this.processPollInterval(cmdDetails, ctlvs);
+        break;
+      case STK_CMD_POLL_OFF:
+        param = this.processPollOff(cmdDetails, ctlvs);
+        break;
       case STK_CMD_SET_UP_EVENT_LIST:
         param = this.processSetUpEventList(cmdDetails, ctlvs);
         break;
@@ -6034,9 +6111,12 @@ let StkCommandParamsFactory = {
       case STK_CMD_SET_UP_CALL:
         param = this.processSetupCall(cmdDetails, ctlvs);
         break;
-      case STK_LAUNCH_BROWSER:
+      case STK_CMD_LAUNCH_BROWSER:
         param = this.processLaunchBrowser(cmdDetails, ctlvs);
         break;
+      case STK_CMD_PLAY_TONE:
+        param = this.processPlayTone(cmdDetails, ctlvs);
+        break;
       default:
         debug("unknown proactive command");
         break;
@@ -6044,6 +6124,66 @@ let StkCommandParamsFactory = {
     return param;
   },
 
+  /**
+   * Construct a param for Refresh.
+   *
+   * @param cmdDetails
+   *        The value object of CommandDetails TLV.
+   * @param ctlvs
+   *        The all TLVs in this proactive command.
+   */
+  processRefresh: function processRefresh(cmdDetails, ctlvs) {
+    let refreshType = cmdDetails.commandQualifier;
+    switch (refreshType) {
+      case STK_REFRESH_FILE_CHANGE:
+      case STK_REFRESH_NAA_INIT_AND_FILE_CHANGE:
+        let ctlv = StkProactiveCmdHelper.searchForTag(
+          COMPREHENSIONTLV_FILE_LIST, ctlvs);
+        if (ctlv) {
+          let list = ctlv.value.fileList;
+          if (DEBUG) {
+            debug("Refresh, list = " + list);
+          }
+          RIL.fetchICCRecords();
+        }
+        break;
+    }
+    return {};
+  },
+
+  /**
+   * Construct a param for Poll Interval.
+   *
+   * @param cmdDetails
+   *        The value object of CommandDetails TLV.
+   * @param ctlvs
+   *        The all TLVs in this proactive command.
+   */
+  processPollInterval: function processPollInterval(cmdDetails, ctlvs) {
+    let ctlv = StkProactiveCmdHelper.searchForTag(
+        COMPREHENSIONTLV_TAG_DURATION, ctlvs);
+    if (!ctlv) {
+      RIL.sendStkTerminalResponse({
+        command: cmdDetails,
+        resultCode: STK_RESULT_REQUIRED_VALUES_MISSING});
+      throw new Error("Stk Poll Interval: Required value missing : Duration");
+    }
+
+    return ctlv.value;
+  },
+
+  /**
+   * Construct a param for Poll Off.
+   *
+   * @param cmdDetails
+   *        The value object of CommandDetails TLV.
+   * @param ctlvs
+   *        The all TLVs in this proactive command.
+   */
+  processPollOff: function processPollOff(cmdDetails, ctlvs) {
+    return {};
+  },
+
   /**
    * Construct a param for Set Up Event list.
    *
@@ -6309,6 +6449,32 @@ let StkCommandParamsFactory = {
     browser.mode = cmdDetails.commandQualifier & 0x03;
 
     return browser;
+  },
+
+  processPlayTone: function processPlayTone(cmdDetails, ctlvs) {
+    let playTone = {};
+
+    let ctlv = StkProactiveCmdHelper.searchForTag(
+        COMPREHENSIONTLV_TAG_ALPHA_ID, ctlvs);
+    if (ctlv) {
+      playTone.text = ctlv.value.identifier;
+    }
+
+    ctlv = StkProactiveCmdHelper.searchForTag(COMPREHENSIONTLV_TAG_TONE, ctlvs);
+    if (ctlv) {
+      playTone.tone = ctlv.value.tone;
+    }
+
+    ctlv = StkProactiveCmdHelper.searchForTag(
+        COMPREHENSIONTLV_TAG_DURATION, ctlvs);
+    if (ctlv) {
+      playTone.duration = ctlv.value;
+    }
+
+    // vibrate is only defined in TS 102.223
+    playTone.isVibrate = (cmdDetails.commandQualifier & 0x01) != 0x00;
+
+    return playTone;
   }
 };
 
@@ -6321,16 +6487,22 @@ let StkProactiveCmdHelper = {
         return this.retrieveDeviceId(length);
       case COMPREHENSIONTLV_TAG_ALPHA_ID:
         return this.retrieveAlphaId(length);
+      case COMPREHENSIONTLV_TAG_DURATION:
+        return this.retrieveDuration(length);
       case COMPREHENSIONTLV_TAG_ADDRESS:
         return this.retrieveAddress(length);
       case COMPREHENSIONTLV_TAG_TEXT_STRING:
         return this.retrieveTextString(length);
+      case COMPREHENSIONTLV_TAG_TONE:
+        return this.retrieveTone(length);
       case COMPREHENSIONTLV_TAG_ITEM:
         return this.retrieveItem(length);
       case COMPREHENSIONTLV_TAG_ITEM_ID:
         return this.retrieveItemId(length);
       case COMPREHENSIONTLV_TAG_RESPONSE_LENGTH:
         return this.retrieveResponseLength(length);
+      case COMPREHENSIONTLV_TAG_FILE_LIST:
+        return this.retrieveFileList(length);
       case COMPREHENSIONTLV_TAG_DEFAULT_TEXT:
         return this.retrieveDefaultText(length);
       case COMPREHENSIONTLV_TAG_EVENT_LIST:
@@ -6398,6 +6570,23 @@ let StkProactiveCmdHelper = {
     return alphaId;
   },
 
+  /**
+   * Duration.
+   *
+   * | Byte | Description           | Length |
+   * |  1   | Response Length Tag   |   1    |
+   * |  2   | Lenth = 02            |   1    |
+   * |  3   | Time unit             |   1    |
+   * |  4   | Time interval         |   1    |
+   */
+  retrieveDuration: function retrieveDuration(length) {
+    let duration = {
+      timeUnit: GsmPDUHelper.readHexOctet(),
+      timeInterval: GsmPDUHelper.readHexOctet(),
+    };
+    return duration;
+  },
+
   /**
    * Address.
    *
@@ -6450,6 +6639,21 @@ let StkProactiveCmdHelper = {
     return text;
   },
 
+  /**
+   * Tone.
+   *
+   * | Byte | Description     | Length |
+   * |  1   | Tone Tag        |   1    |
+   * |  2   | Lenth = 01      |   1    |
+   * |  3   | Tone            |   1    |
+   */
+  retrieveTone: function retrieveTone(length) {
+    let tone = {
+      tone: GsmPDUHelper.readHexOctet(),
+    };
+    return tone;
+  },
+
   /**
    * Item.
    *
@@ -6500,6 +6704,30 @@ let StkProactiveCmdHelper = {
     return rspLength;
   },
 
+  /**
+   * File List.
+   *
+   * | Byte         | Description            | Length |
+   * |  1           | File List Tag          |   1    |
+   * | 2 ~ (Y-1)+2  | Length (X)             |   Y    |
+   * | (Y-1)+3      | Number of files        |   1    |
+   * | (Y-1)+4 ~    | Files                  |   X    |
+   * | (Y-1)+X+2    |                        |        |
+   */
+  retrieveFileList: function retrieveFileList(length) {
+    let num = GsmPDUHelper.readHexOctet();
+    let fileList = "";
+    length--; // -1 for the num octet.
+    for (let i = 0; i < 2 * length; i++) {
+      // Didn't use readHexOctet here,
+      // otherwise 0x00 will be "0", not "00"
+      fileList += String.fromCharCode(Buf.readUint16());
+    }
+    return {
+      fileList: fileList
+    };
+  },
+
   /**
    * Default Text.
    *
@@ -6669,7 +6897,68 @@ let ComprehensionTlvHelper = {
       index += tlv.hlen;
     }
     return chunks;
+  },
+
+  /**
+   * Write Location Info Comprehension TLV.
+   *
+   * @param loc location Information.
+   */
+  writeLocationInfoTlv: function writeLocationInfoTlv(loc) {
+    GsmPDUHelper.writeHexOctet(COMPREHENSIONTLV_TAG_LOCATION_INFO |
+                               COMPREHENSIONTLV_FLAG_CR);
+    GsmPDUHelper.writeHexOctet(loc.gsmCellId > 0xffff ? 9 : 7);
+    // From TS 11.14, clause 12.19
+    // "The mobile country code (MCC), the mobile network code (MNC),
+    // the location area code (LAC) and the cell ID are
+    // coded as in TS 04.08."
+    // And from TS 04.08 and TS 24.008,
+    // the format is as follows:
+    //
+    // MCC = MCC_digit_1 + MCC_digit_2 + MCC_digit_3
+    //
+    //   8  7  6  5    4  3  2  1
+    // +-------------+-------------+
+    // | MCC digit 2 | MCC digit 1 | octet 2
+    // | MNC digit 3 | MCC digit 3 | octet 3
+    // | MNC digit 2 | MNC digit 1 | octet 4
+    // +-------------+-------------+
+    //
+    // Also in TS 24.008
+    // "However a network operator may decide to
+    // use only two digits in the MNC in the LAI over the
+    // radio interface. In this case, bits 5 to 8 of octet 3
+    // shall be coded as '1111'".
+
+    // MCC & MNC, 3 octets
+    let mcc = loc.mcc.toString();
+    let mnc = loc.mnc.toString();
+    if (mnc.length == 1) {
+      mnc = "F0" + mnc;
+    } else if (mnc.length == 2) {
+      mnc = "F" + mnc;
+    } else {
+      mnc = mnc[2] + mnc[0] + mnc[1];
     }
+    GsmPDUHelper.writeSwappedNibbleBCD(mcc + mnc);
+
+    // LAC, 2 octets
+    GsmPDUHelper.writeHexOctet((loc.gsmLocationAreaCode >> 8) & 0xff);
+    GsmPDUHelper.writeHexOctet(loc.gsmLocationAreaCode & 0xff);
+
+    // Cell Id
+    if (loc.gsmCellId > 0xffff) {
+      // UMTS/WCDMA, gsmCellId is 28 bits.
+      GsmPDUHelper.writeHexOctet((loc.gsmCellId >> 24) & 0xff);
+      GsmPDUHelper.writeHexOctet((loc.gsmCellId >> 16) & 0xff);
+      GsmPDUHelper.writeHexOctet((loc.gsmCellId >> 8) & 0xff);
+      GsmPDUHelper.writeHexOctet(loc.gsmCellId & 0xff);
+    } else {
+      // GSM, gsmCellId is 16 bits.
+      GsmPDUHelper.writeHexOctet((loc.gsmCellId >> 8) & 0xff);
+      GsmPDUHelper.writeHexOctet(loc.gsmCellId & 0xff);
+    }
+  },
 };
 
 let BerTlvHelper = {

dom/system/gonk/tests/test_ril_worker_icc.js

@@ -142,3 +142,202 @@ add_test(function test_write_dialling_number() {
   run_next_test();
 });
 
+/**
+ * Verify ComprehensionTlvHelper.writeLocationInfoTlv
+ */
+add_test(function test_write_location_info_tlv() {
+  let worker = newUint8Worker();
+  let pduHelper = worker.GsmPDUHelper;
+  let tlvHelper = worker.ComprehensionTlvHelper;
+
+  // Test with 2-digit mnc, and gsmCellId obtained from UMTS network.
+  let loc = {
+    mcc: 466,
+    mnc: 92,
+    gsmLocationAreaCode : 10291,
+    gsmCellId: 19072823
+  };
+  tlvHelper.writeLocationInfoTlv(loc);
+
+  let tag = pduHelper.readHexOctet();
+  do_check_eq(tag, COMPREHENSIONTLV_TAG_LOCATION_INFO |
+                   COMPREHENSIONTLV_FLAG_CR);
+
+  let length = pduHelper.readHexOctet();
+  do_check_eq(length, 9);
+
+  let mcc_mnc = pduHelper.readSwappedNibbleBcdString(3);
+  do_check_eq(mcc_mnc, "46692");
+
+  let lac = (pduHelper.readHexOctet() << 8) | pduHelper.readHexOctet();
+  do_check_eq(lac, 10291);
+
+  let cellId = (pduHelper.readHexOctet() << 24) |
+               (pduHelper.readHexOctet() << 16) |
+               (pduHelper.readHexOctet() << 8)  |
+               (pduHelper.readHexOctet());
+  do_check_eq(cellId, 19072823);
+
+  // Test with 1-digit mnc, and gsmCellId obtained from GSM network.
+  loc = {
+    mcc: 466,
+    mnc: 2,
+    gsmLocationAreaCode : 10291,
+    gsmCellId: 65534
+  };
+  tlvHelper.writeLocationInfoTlv(loc);
+
+  tag = pduHelper.readHexOctet();
+  do_check_eq(tag, COMPREHENSIONTLV_TAG_LOCATION_INFO |
+                   COMPREHENSIONTLV_FLAG_CR);
+
+  length = pduHelper.readHexOctet();
+  do_check_eq(length, 7);
+
+  mcc_mnc = pduHelper.readSwappedNibbleBcdString(3);
+  do_check_eq(mcc_mnc, "46602");
+
+  lac = (pduHelper.readHexOctet() << 8) | pduHelper.readHexOctet();
+  do_check_eq(lac, 10291);
+
+  cellId = (pduHelper.readHexOctet() << 8)  |
+               (pduHelper.readHexOctet());
+  do_check_eq(cellId, 65534);
+
+  // Test with 3-digit mnc, and gsmCellId obtained from GSM network.
+  loc = {
+    mcc: 466,
+    mnc: 222,
+    gsmLocationAreaCode : 10291,
+    gsmCellId: 65534
+  };
+  tlvHelper.writeLocationInfoTlv(loc);
+
+  tag = pduHelper.readHexOctet();
+  do_check_eq(tag, COMPREHENSIONTLV_TAG_LOCATION_INFO |
+                   COMPREHENSIONTLV_FLAG_CR);
+
+  length = pduHelper.readHexOctet();
+  do_check_eq(length, 7);
+
+  mcc_mnc = pduHelper.readSwappedNibbleBcdString(3);
+  do_check_eq(mcc_mnc, "466222");
+
+  lac = (pduHelper.readHexOctet() << 8) | pduHelper.readHexOctet();
+  do_check_eq(lac, 10291);
+
+  cellId = (pduHelper.readHexOctet() << 8) |
+           (pduHelper.readHexOctet());
+  do_check_eq(cellId, 65534);
+
+  run_next_test();
+});
+
+/**
+ * Verify Proactive Command : Refresh
+ */
+add_test(function test_stk_proactive_command_refresh() {
+  let worker = newUint8Worker();
+  let pduHelper = worker.GsmPDUHelper;
+  let berHelper = worker.BerTlvHelper;
+  let stkHelper = worker.StkProactiveCmdHelper;
+
+  let refresh_1 = [
+    0xD0,
+    0x10,
+    0x81, 0x03, 0x01, 0x01, 0x01,
+    0x82, 0x02, 0x81, 0x82,
+    0x92, 0x05, 0x01, 0x3F, 0x00, 0x2F, 0xE2];
+
+  for (let i = 0; i < refresh_1.length; i++) {
+    pduHelper.writeHexOctet(refresh_1[i]);
+  }
+
+  let berTlv = berHelper.decode(refresh_1.length);
+  let ctlvs = berTlv.value;
+  let tlv = stkHelper.searchForTag(COMPREHENSIONTLV_TAG_COMMAND_DETAILS, ctlvs);
+  do_check_eq(tlv.value.commandNumber, 0x01);
+  do_check_eq(tlv.value.typeOfCommand, 0x01);
+  do_check_eq(tlv.value.commandQualifier, 0x01);
+
+  tlv = stkHelper.searchForTag(COMPREHENSIONTLV_TAG_FILE_LIST, ctlvs);
+  do_check_eq(tlv.value.fileList, "3F002FE2");
+
+  run_next_test();
+});
+
+/**
+ * Verify Proactive Command : Play Tone
+ */
+add_test(function test_stk_proactive_command_play_tone() {
+  let worker = newUint8Worker();
+  let pduHelper = worker.GsmPDUHelper;
+  let berHelper = worker.BerTlvHelper;
+  let stkHelper = worker.StkProactiveCmdHelper;
+
+  let tone_1 = [
+    0xD0,
+    0x1B,
+    0x81, 0x03, 0x01, 0x20, 0x00,
+    0x82, 0x02, 0x81, 0x03,
+    0x85, 0x09, 0x44, 0x69, 0x61, 0x6C, 0x20, 0x54, 0x6F, 0x6E, 0x65,
+    0x8E, 0x01, 0x01,
+    0x84, 0x02, 0x01, 0x05];
+
+  for (let i = 0; i < tone_1.length; i++) {
+    pduHelper.writeHexOctet(tone_1[i]);
+  }
+
+  let berTlv = berHelper.decode(tone_1.length);
+  let ctlvs = berTlv.value;
+  let tlv = stkHelper.searchForTag(COMPREHENSIONTLV_TAG_COMMAND_DETAILS, ctlvs);
+  do_check_eq(tlv.value.commandNumber, 0x01);
+  do_check_eq(tlv.value.typeOfCommand, 0x20);
+  do_check_eq(tlv.value.commandQualifier, 0x00);
+
+  tlv = stkHelper.searchForTag(COMPREHENSIONTLV_TAG_ALPHA_ID, ctlvs);
+  do_check_eq(tlv.value.identifier, "Dial Tone");
+
+  tlv = stkHelper.searchForTag(COMPREHENSIONTLV_TAG_TONE, ctlvs);
+  do_check_eq(tlv.value.tone, STK_TONE_TYPE_DIAL_TONE);
+
+  tlv = stkHelper.searchForTag(COMPREHENSIONTLV_TAG_DURATION, ctlvs);
+  do_check_eq(tlv.value.timeUnit, STK_TIME_UNIT_SECOND);
+  do_check_eq(tlv.value.timeInterval, 5);
+
+  run_next_test();
+});
+
+/**
+ * Verify Proactive Command : Poll Interval
+ */
+add_test(function test_stk_proactive_command_poll_interval() {
+  let worker = newUint8Worker();
+  let pduHelper = worker.GsmPDUHelper;
+  let berHelper = worker.BerTlvHelper;
+  let stkHelper = worker.StkProactiveCmdHelper;
+
+  let poll_1 = [
+    0xD0,
+    0x0D,
+    0x81, 0x03, 0x01, 0x03, 0x00,
+    0x82, 0x02, 0x81, 0x82,
+    0x84, 0x02, 0x01, 0x14];
+
+  for (let i = 0; i < poll_1.length; i++) {
+    pduHelper.writeHexOctet(poll_1[i]);
+  }
+
+  let berTlv = berHelper.decode(poll_1.length);
+  let ctlvs = berTlv.value;
+  let tlv = stkHelper.searchForTag(COMPREHENSIONTLV_TAG_COMMAND_DETAILS, ctlvs);
+  do_check_eq(tlv.value.commandNumber, 0x01);
+  do_check_eq(tlv.value.typeOfCommand, 0x03);
+  do_check_eq(tlv.value.commandQualifier, 0x00);
+
+  tlv = stkHelper.searchForTag(COMPREHENSIONTLV_TAG_DURATION, ctlvs);
+  do_check_eq(tlv.value.timeUnit, STK_TIME_UNIT_SECOND);
+  do_check_eq(tlv.value.timeInterval, 0x14);
+
+  run_next_test();
+});

gfx/2d/BaseRect.h

@@ -403,6 +403,21 @@ struct BaseRect {
     width = right - x;
     height = bottom - y;
   }
+  // Scale 'this' by 1/aScale, converting coordinates to integers so that the result is
+  // the largest integer-coordinate rectangle contained by the unrounded result.
+  void ScaleInverseRoundIn(double aScale) { ScaleInverseRoundIn(aScale, aScale); }
+  // Scale 'this' by 1/aXScale and 1/aYScale, converting coordinates to integers so
+  // that the result is the largest integer-coordinate rectangle contained by the
+  // unrounded result.
+  void ScaleInverseRoundIn(double aXScale, double aYScale)
+  {
+    T right = static_cast<T>(floor(double(XMost()) / aXScale));
+    T bottom = static_cast<T>(floor(double(YMost()) / aYScale));
+    x = static_cast<T>(ceil(double(x) / aXScale));
+    y = static_cast<T>(ceil(double(y) / aYScale));
+    width = gfx_max<T>(0, right - x);
+    height = gfx_max<T>(0, bottom - y);
+  }
 
   /**
    * Clamp aPoint to this rectangle. It is allowed to end up on any

gfx/layers/FrameMetrics.h

@@ -30,12 +30,15 @@ public:
                                         // will begin at.
 
   FrameMetrics()
-    : mViewport(0, 0, 0, 0)
+    : mCompositionBounds(0, 0, 0, 0)
     , mContentRect(0, 0, 0, 0)
-    , mViewportScrollOffset(0, 0)
+    , mDisplayPort(0, 0, 0, 0)
+    , mViewport(0, 0, 0, 0)
+    , mScrollOffset(0, 0)
     , mScrollId(NULL_SCROLL_ID)
-    , mCSSContentRect(0, 0, 0, 0)
+    , mScrollableRect(0, 0, 0, 0)
     , mResolution(1, 1)
+    , mDevPixelsPerCSSPixel(1)
     , mMayHaveTouchListeners(false)
   {}
 
@@ -44,7 +47,7 @@ public:
   bool operator==(const FrameMetrics& aOther) const
   {
     return (mViewport.IsEqualEdges(aOther.mViewport) &&
-            mViewportScrollOffset == aOther.mViewportScrollOffset &&
+            mScrollOffset == aOther.mScrollOffset &&
             mDisplayPort.IsEqualEdges(aOther.mDisplayPort) &&
             mScrollId == aOther.mScrollId);
   }
@@ -68,21 +71,152 @@ public:
     return mScrollId != NULL_SCROLL_ID;
   }
 
-  // These are all in layer coordinate space.
-  nsIntRect mViewport;
+  gfxSize LayersPixelsPerCSSPixel() const
+  {
+    return mResolution * mDevPixelsPerCSSPixel;
+  }
+
+  gfx::Point GetScrollOffsetInLayerPixels() const
+  {
+    return gfx::Point(mScrollOffset.x * LayersPixelsPerCSSPixel().width,
+                      mScrollOffset.y * LayersPixelsPerCSSPixel().height);
+  }
+
+  // ---------------------------------------------------------------------------
+  // The following metrics are all in widget space/device pixels.
+  //
+
+  // This is the area within the widget that we're compositing to, which means
+  // that it is the visible region of this frame. It is not relative to
+  // anything.
+  // So { 0, 0, [compositeArea.width], [compositeArea.height] }.
+  //
+  // This is useful because, on mobile, the viewport and composition dimensions
+  // are not always the same. In this case, we calculate the displayport using
+  // an area bigger than the region we're compositing to. If we used the
+  // viewport dimensions to calculate the displayport, we'd run into situations
+  // where we're prerendering the wrong regions and the content may be clipped,
+  // or too much of it prerendered. If the displayport is the same as the
+  // viewport, there is no need for this and we can just use the viewport
+  // instead.
+  //
+  // This is only valid on the root layer. Nested iframes do not need this
+  // metric as they do not have a displayport set. See bug 775452.
+  nsIntRect mCompositionBounds;
+
+  // |mScrollableRect|, stored in device pixels. DECPRECATED, DO NOT USE.
+  //
+  // This is valid on any layer where |mScrollableRect| is, though it may be
+  // more lazily maintained than |mScrollableRect|. That is, when
+  // |mScrollableRect| is updated, this may lag. For this reason, it's better to
+  // use |mScrollableRect| for any control logic.
+  //
+  // FIXME/bug 785929: Is this really necessary? Can it not be calculated from
+  // |mScrollableRect| whenever it's needed?
   nsIntRect mContentRect;
-  gfx::Point mViewportScrollOffset;
-  nsIntRect mDisplayPort;
+
+  // ---------------------------------------------------------------------------
+  // The following metrics are all in CSS pixels. They are not in any uniform
+  // space, so each is explained separately.
+  //
+
+  // The area of a frame's contents that has been painted, relative to the
+  // viewport. It is in the same coordinate space as |mViewport|. For example,
+  // if it is at 0,0, then it's at the same place at the viewport, which is at
+  // the top-left in the layer, and at the same place as the scroll offset of
+  // the document.
+  //
+  // Note that this is structured in such a way that it doesn't depend on the
+  // method layout uses to scroll content.
+  //
+  // May be larger or smaller than |mScrollableRect|.
+  //
+  // To pre-render a margin of 100 CSS pixels around the window,
+  // { x = -100, y = - 100,
+  //   width = window.innerWidth + 100, height = window.innerHeight + 100 }
+  //
+  // This is only valid on the root layer. Nested iframes do not have a
+  // displayport set on them. See bug 775452.
+  gfx::Rect mDisplayPort;
+
+  // The CSS viewport, which is the dimensions we're using to constrain the
+  // <html> element of this frame, relative to the top-left of the layer. Note
+  // that its offset is structured in such a way that it doesn't depend on the
+  // method layout uses to scroll content.
+  //
+  // This is mainly useful on the root layer, however nested iframes can have
+  // their own viewport, which will just be the size of the window of the
+  // iframe. For layers that don't correspond to a document, this metric is
+  // meaningless and invalid.
+  gfx::Rect mViewport;
+
+  // The position of the top-left of the CSS viewport, relative to the document
+  // (or the document relative to the viewport, if that helps understand it).
+  //
+  // Thus it is relative to the document. It is in the same coordinate space as
+  // |mScrollableRect|, but a different coordinate space than |mViewport| and
+  // |mDisplayPort|.
+  //
+  // It is required that the rect:
+  // { x = mScrollOffset.x, y = mScrollOffset.y,
+  //   width = mCompositionBounds.x / mResolution.width,
+  //   height = mCompositionBounds.y / mResolution.height }
+  // Be within |mScrollableRect|.
+  //
+  // This is valid for any layer, but is always relative to this frame and
+  // not any parents, regardless of parent transforms.
+  gfx::Point mScrollOffset;
+
+  // A unique ID assigned to each scrollable frame (unless this is
+  // ROOT_SCROLL_ID, in which case it is not unique).
   ViewID mScrollId;
 
-  // Consumers often want to know the origin/size before scaling to pixels
-  // so we record this as well.
-  gfx::Rect mCSSContentRect;
+  // The scrollable bounds of a frame. This is determined by reflow.
+  // For the top-level |window|,
+  // { x = window.scrollX, y = window.scrollY, // could be 0, 0
+  //   width = window.innerWidth, height = window.innerHeight }
+  //
+  // This is relative to the document. It is in the same coordinate space as
+  // |mScrollOffset|, but a different coordinate space than |mViewport| and
+  // |mDisplayPort|. Note also that this coordinate system is understood by
+  // window.scrollTo().
+  //
+  // This is valid on any layer unless it has no content.
+  gfx::Rect mScrollableRect;
 
-  // This represents the resolution at which the associated layer
-  // will been rendered.
+  // ---------------------------------------------------------------------------
+  // The following metrics are dimensionless.
+  //
+
+  // The resolution, along both axes, that the current frame has been painted
+  // at.
+  //
+  // Every time this frame is composited and the compositor samples its
+  // transform, this metric is used to create a transform which is
+  // post-multiplied into the parent's transform. Since this only happens when
+  // we walk the layer tree, the resulting transform isn't stored here. Thus the
+  // resolution of parent layers is opaque to this metric.
   gfxSize mResolution;
 
+  // The amount we are currently zooming the frame. This is distinct from
+  // |mResolution| as we can paint a frame at a different resolution than we
+  // zoom it at. This is useful in situations where we want to zoom a frame
+  // without forcing a repaint. At steady state, this and |mResolution| will be
+  // equal.
+  //
+  // Every time this frame is composited and the compositor samples its
+  // transform, this metric is used to create a transform which is
+  // post-multiplied into the parent's transform. Since this only happens when
+  // we walk the layer tree, the resulting transform isn't stored here. Thus the
+  // zoom of parent layers is opaque to this metric.
+  gfxSize mZoom;
+
+  // The conversion factor between CSS pixels and device pixels for this frame.
+  // This can vary based on a variety of things, such as reflowing-zoom. The
+  // conversion factor for device pixels to layers pixels is just the
+  // resolution.
+  float mDevPixelsPerCSSPixel;
+
   // Whether or not this frame may have touch listeners.
   bool mMayHaveTouchListeners;
 };

gfx/layers/Layers.cpp

@@ -143,6 +143,17 @@ AppendToString(nsACString& s, const nsIntRect& r,
   return s += sfx;
 }
 
+nsACString&
+AppendToString(nsACString& s, const Rect& r,
+               const char* pfx="", const char* sfx="")
+{
+  s += pfx;
+  s.AppendPrintf(
+    "(x=%f, y=%f, w=%f, h=%f)",
+    r.x, r.y, r.width, r.height);
+  return s += sfx;
+}
+
 nsACString&
 AppendToString(nsACString& s, const nsIntRegion& r,
                const char* pfx="", const char* sfx="")
@@ -173,7 +184,7 @@ AppendToString(nsACString& s, const FrameMetrics& m,
 {
   s += pfx;
   AppendToString(s, m.mViewport, "{ viewport=");
-  AppendToString(s, m.mViewportScrollOffset, " viewportScroll=");
+  AppendToString(s, m.mScrollOffset, " viewportScroll=");
   AppendToString(s, m.mDisplayPort, " displayport=");
   AppendToString(s, m.mScrollId, " scrollId=", " }");
   return s += sfx;

gfx/layers/basic/BasicTiledThebesLayer.cpp

@@ -253,7 +253,7 @@ BasicTiledThebesLayer::PaintThebes(gfxContext* aContext,
   Layer* primaryScrollable = BasicManager()->GetPrimaryScrollableLayer();
   if (primaryScrollable) {
     const FrameMetrics& metrics = primaryScrollable->AsContainerLayer()->GetFrameMetrics();
-    scrollOffset = metrics.mViewportScrollOffset;
+    scrollOffset = metrics.mScrollOffset;
   }
   int32_t scrollDiffX = scrollOffset.x - mLastScrollOffset.x;
   int32_t scrollDiffY = scrollOffset.y - mLastScrollOffset.y;

gfx/layers/ipc/AsyncPanZoomController.cpp

@@ -44,7 +44,7 @@ static const int32_t FLING_REPAINT_INTERVAL = 75;
  * Minimum amount of speed along an axis before we begin painting far ahead by
  * adjusting the displayport.
  */
-static const float MIN_SKATE_SPEED = 0.5f;
+static const float MIN_SKATE_SPEED = 0.7f;
 
 /**
  * Angle from axis within which we stay axis-locked.
@@ -79,17 +79,26 @@ static const double MIN_ZOOM = 0.125;
  */
 static const int TOUCH_LISTENER_TIMEOUT = 300;
 
+/**
+ * Number of samples to store of how long it took to paint after the previous
+ * requests.
+ */
+static const int NUM_PAINT_DURATION_SAMPLES = 3;
+
 AsyncPanZoomController::AsyncPanZoomController(GeckoContentController* aGeckoContentController,
                                                GestureBehavior aGestures)
   :  mGeckoContentController(aGeckoContentController),
      mTouchListenerTimeoutTask(nullptr),
      mX(this),
      mY(this),
+     mAllowZoom(true),
+     mMinZoom(MIN_ZOOM),
+     mMaxZoom(MAX_ZOOM),
      mMonitor("AsyncPanZoomController"),
      mLastSampleTime(TimeStamp::Now()),
      mState(NOTHING),
      mDPI(72),
-     mContentPainterStatus(CONTENT_IDLE),
+     mWaitingForContentToPaint(false),
      mDisableNextTouchBatch(false),
      mHandlingTouchQueue(false)
 {
@@ -137,11 +146,11 @@ AsyncPanZoomController::ReceiveInputEvent(const nsInputEvent& aEvent,
   gfx::Point currentScrollOffset, lastScrollOffset;
   {
     MonitorAutoLock monitor(mMonitor);
-    currentZoom = mFrameMetrics.mResolution.width;
-    currentScrollOffset = gfx::Point(mFrameMetrics.mViewportScrollOffset.x,
-                                     mFrameMetrics.mViewportScrollOffset.y);
-    lastScrollOffset = gfx::Point(mLastContentPaintMetrics.mViewportScrollOffset.x,
-                                  mLastContentPaintMetrics.mViewportScrollOffset.y);
+    currentZoom = mFrameMetrics.mZoom.width;
+    currentScrollOffset = gfx::Point(mFrameMetrics.mScrollOffset.x,
+                                     mFrameMetrics.mScrollOffset.y);
+    lastScrollOffset = gfx::Point(mLastContentPaintMetrics.mScrollOffset.x,
+                                  mLastContentPaintMetrics.mScrollOffset.y);
   }
 
   nsEventStatus status;
@@ -284,8 +293,13 @@ nsEventStatus AsyncPanZoomController::OnTouchStart(const MultiTouchInput& aEvent
     case ANIMATING_ZOOM:
       // We just interrupted a double-tap animation, so force a redraw in case
       // this touchstart is just a tap that doesn't end up triggering a redraw.
+      {
+        MonitorAutoLock monitor(mMonitor);
+        // Bring the resolution back in sync with the zoom.
+        SetZoomAndResolution(mFrameMetrics.mZoom.width);
         RequestContentRepaint();
         ScheduleComposite();
+      }
       // Fall through.
     case FLING:
       CancelAnimation();
@@ -404,6 +418,10 @@ nsEventStatus AsyncPanZoomController::OnTouchCancel(const MultiTouchInput& aEven
 }
 
 nsEventStatus AsyncPanZoomController::OnScaleBegin(const PinchGestureInput& aEvent) {
+  if (!mAllowZoom) {
+    return nsEventStatus_eConsumeNoDefault;
+  }
+
   SetState(PINCHING);
   mLastZoomFocus = aEvent.mFocusPoint;
 
@@ -411,6 +429,10 @@ nsEventStatus AsyncPanZoomController::OnScaleBegin(const PinchGestureInput& aEve
 }
 
 nsEventStatus AsyncPanZoomController::OnScale(const PinchGestureInput& aEvent) {
+  if (mState != PINCHING) {
+    return nsEventStatus_eConsumeNoDefault;
+  }
+
   float prevSpan = aEvent.mPreviousSpan;
   if (fabsf(prevSpan) <= EPSILON || fabsf(aEvent.mCurrentSpan) <= EPSILON) {
     // We're still handling it; we've just decided to throw this event away.
@@ -422,7 +444,7 @@ nsEventStatus AsyncPanZoomController::OnScale(const PinchGestureInput& aEvent) {
   {
     MonitorAutoLock monitor(mMonitor);
 
-    float scale = mFrameMetrics.mResolution.width;
+    float scale = mFrameMetrics.mZoom.width;
 
     nsIntPoint focusPoint = aEvent.mFocusPoint;
     float xFocusChange = (mLastZoomFocus.x - focusPoint.x) / scale, yFocusChange = (mLastZoomFocus.y - focusPoint.y) / scale;
@@ -442,14 +464,14 @@ nsEventStatus AsyncPanZoomController::OnScale(const PinchGestureInput& aEvent) {
     float neededDisplacementX = 0, neededDisplacementY = 0;
 
     // Only do the scaling if we won't go over 8x zoom in or out.
-    bool doScale = (scale < MAX_ZOOM && spanRatio > 1.0f) || (scale > MIN_ZOOM && spanRatio < 1.0f);
+    bool doScale = (scale < mMaxZoom && spanRatio > 1.0f) || (scale > mMinZoom && spanRatio < 1.0f);
 
     // If this zoom will take it over 8x zoom in either direction, but it's not
     // already there, then normalize it.
-    if (scale * spanRatio > MAX_ZOOM) {
-      spanRatio = scale / MAX_ZOOM;
-    } else if (scale * spanRatio < MIN_ZOOM) {
-      spanRatio = scale / MIN_ZOOM;
+    if (scale * spanRatio > mMaxZoom) {
+      spanRatio = scale / mMaxZoom;
+    } else if (scale * spanRatio < mMinZoom) {
+      spanRatio = scale / mMinZoom;
     }
 
     if (doScale) {
@@ -529,7 +551,7 @@ nsEventStatus AsyncPanZoomController::OnSingleTapUp(const TapGestureInput& aEven
 
     gfx::Point point = WidgetSpaceToCompensatedViewportSpace(
       gfx::Point(aEvent.mPoint.x, aEvent.mPoint.y),
-      mFrameMetrics.mResolution.width);
+      mFrameMetrics.mZoom.width);
     mGeckoContentController->HandleSingleTap(nsIntPoint(NS_lround(point.x), NS_lround(point.y)));
     return nsEventStatus_eConsumeNoDefault;
   }
@@ -545,10 +567,13 @@ nsEventStatus AsyncPanZoomController::OnDoubleTap(const TapGestureInput& aEvent)
   if (mGeckoContentController) {
     MonitorAutoLock monitor(mMonitor);
 
+    if (mAllowZoom) {
       gfx::Point point = WidgetSpaceToCompensatedViewportSpace(
         gfx::Point(aEvent.mPoint.x, aEvent.mPoint.y),
-      mFrameMetrics.mResolution.width);
+        mFrameMetrics.mZoom.width);
       mGeckoContentController->HandleDoubleTap(nsIntPoint(NS_lround(point.x), NS_lround(point.y)));
+    }
+
     return nsEventStatus_eConsumeNoDefault;
   }
   return nsEventStatus_eIgnore;
@@ -568,6 +593,10 @@ const gfx::Point AsyncPanZoomController::GetVelocityVector() {
   return gfx::Point(mX.GetVelocity(), mY.GetVelocity());
 }
 
+const gfx::Point AsyncPanZoomController::GetAccelerationVector() {
+  return gfx::Point(mX.GetAccelerationFactor(), mY.GetAccelerationFactor());
+}
+
 void AsyncPanZoomController::StartPanning(const MultiTouchInput& aEvent) {
   float dx = mX.PanDistance(),
         dy = mY.PanDistance();
@@ -614,7 +643,7 @@ void AsyncPanZoomController::TrackTouch(const MultiTouchInput& aEvent) {
 
     // We want to inversely scale it because when you're zoomed further in, a
     // larger swipe should move you a shorter distance.
-    float inverseScale = 1 / mFrameMetrics.mResolution.width;
+    float inverseScale = 1 / mFrameMetrics.mZoom.width;
 
     int32_t xDisplacement = mX.GetDisplacementForDuration(inverseScale, timeDelta);
     int32_t yDisplacement = mY.GetDisplacementForDuration(inverseScale, timeDelta);
@@ -642,6 +671,9 @@ bool AsyncPanZoomController::DoFling(const TimeDuration& aDelta) {
        shouldContinueFlingY = mY.FlingApplyFrictionOrCancel(aDelta);
   // If we shouldn't continue the fling, let's just stop and repaint.
   if (!shouldContinueFlingX && !shouldContinueFlingY) {
+    // Bring the resolution back in sync with the zoom, in case we scaled down
+    // the zoom while accelerating.
+    SetZoomAndResolution(mFrameMetrics.mZoom.width);
     RequestContentRepaint();
     mState = NOTHING;
     return false;
@@ -649,7 +681,7 @@ bool AsyncPanZoomController::DoFling(const TimeDuration& aDelta) {
 
   // We want to inversely scale it because when you're zoomed further in, a
   // larger swipe should move you a shorter distance.
-  float inverseScale = 1 / mFrameMetrics.mResolution.width;
+  float inverseScale = 1 / mFrameMetrics.mZoom.width;
 
   ScrollBy(gfx::Point(
     mX.GetDisplacementForDuration(inverseScale, aDelta),
@@ -669,132 +701,167 @@ void AsyncPanZoomController::SetCompositorParent(CompositorParent* aCompositorPa
 }
 
 void AsyncPanZoomController::ScrollBy(const gfx::Point& aOffset) {
-  gfx::Point newOffset(mFrameMetrics.mViewportScrollOffset.x + aOffset.x,
-                       mFrameMetrics.mViewportScrollOffset.y + aOffset.y);
+  gfx::Point newOffset(mFrameMetrics.mScrollOffset.x + aOffset.x,
+                       mFrameMetrics.mScrollOffset.y + aOffset.y);
   FrameMetrics metrics(mFrameMetrics);
-  metrics.mViewportScrollOffset = newOffset;
+  metrics.mScrollOffset = newOffset;
   mFrameMetrics = metrics;
 }
 
 void AsyncPanZoomController::SetPageRect(const gfx::Rect& aCSSPageRect) {
   FrameMetrics metrics = mFrameMetrics;
   gfx::Rect pageSize = aCSSPageRect;
-  float scale = mFrameMetrics.mResolution.width;
+  float scale = mFrameMetrics.mZoom.width;
 
   // The page rect is the css page rect scaled by the current zoom.
-  pageSize.ScaleRoundOut(1 / scale);
+  pageSize.ScaleInverseRoundOut(scale);
 
   // Round the page rect so we don't get any truncation, then get the nsIntRect
   // from this.
   metrics.mContentRect = nsIntRect(pageSize.x, pageSize.y, pageSize.width, pageSize.height);
-  metrics.mCSSContentRect = aCSSPageRect;
+  metrics.mScrollableRect = aCSSPageRect;
 
   mFrameMetrics = metrics;
 }
 
 void AsyncPanZoomController::ScaleWithFocus(float aScale, const nsIntPoint& aFocus) {
-  FrameMetrics metrics(mFrameMetrics);
+  float scaleFactor = aScale / mFrameMetrics.mZoom.width;
 
-  // Don't set the scale to the inputted value, but rather multiply it in.
-  float scaleFactor = aScale / metrics.mResolution.width,
-        oldScale = metrics.mResolution.width;
-
-  metrics.mResolution.width = metrics.mResolution.height = aScale;
+  SetZoomAndResolution(aScale);
 
   // Force a recalculation of the page rect based on the new zoom and the
   // current CSS page rect (which is unchanged since it's not affected by zoom).
-  SetPageRect(mFrameMetrics.mCSSContentRect);
+  SetPageRect(mFrameMetrics.mScrollableRect);
 
-  gfx::Point scrollOffset = metrics.mViewportScrollOffset;
-
-  scrollOffset.x += float(aFocus.x) * (scaleFactor - 1.0f) / oldScale;
-  scrollOffset.y += float(aFocus.y) * (scaleFactor - 1.0f) / oldScale;
-
-  metrics.mViewportScrollOffset = scrollOffset;
-
-  mFrameMetrics = metrics;
+  // If the new scale is very small, we risk multiplying in huge rounding
+  // errors, so don't bother adjusting the scroll offset.
+  if (aScale >= 0.01f) {
+    mFrameMetrics.mScrollOffset.x += float(aFocus.x) * (scaleFactor - 1.0f) / aScale;
+    mFrameMetrics.mScrollOffset.y += float(aFocus.y) * (scaleFactor - 1.0f) / aScale;
+  }
 }
 
-bool AsyncPanZoomController::EnlargeDisplayPortAlongAxis(float aViewport,
+bool AsyncPanZoomController::EnlargeDisplayPortAlongAxis(float aSkateSizeMultiplier,
+                                                         double aEstimatedPaintDuration,
+                                                         float aCompositionBounds,
                                                          float aVelocity,
+                                                         float aAcceleration,
                                                          float* aDisplayPortOffset,
                                                          float* aDisplayPortLength)
 {
-  const float MIN_SKATE_SIZE_MULTIPLIER = 2.0f;
-  const float MAX_SKATE_SIZE_MULTIPLIER = 4.0f;
-
   if (fabsf(aVelocity) > MIN_SKATE_SPEED) {
-    *aDisplayPortLength = aViewport * clamped(fabsf(aVelocity),
-      MIN_SKATE_SIZE_MULTIPLIER, MAX_SKATE_SIZE_MULTIPLIER);
-    *aDisplayPortOffset = aVelocity > 0 ? 0 : aViewport - *aDisplayPortLength;
+    // Enlarge the area we paint.
+    *aDisplayPortLength = aCompositionBounds * aSkateSizeMultiplier;
+    // Position the area we paint such that all of the excess that extends past
+    // the screen is on the side towards the velocity.
+    *aDisplayPortOffset = aVelocity > 0 ? 0 : aCompositionBounds - *aDisplayPortLength;
+
+    // Only compensate for acceleration when we actually have any. Otherwise
+    // we'll overcompensate when a user is just panning around without flinging.
+    if (aAcceleration > 1.01f) {
+      // Compensate for acceleration and how long we expect a paint to take. We
+      // try to predict where the viewport will be when painting has finished.
+      *aDisplayPortOffset +=
+        fabsf(aAcceleration) * aVelocity * aCompositionBounds * aEstimatedPaintDuration;
+      // If our velocity is in the negative direction of the axis, we have to
+      // compensate for the fact that our scroll offset is the top-left position
+      // of the viewport. In this case, let's make it relative to the
+      // bottom-right. That way, we'll always be growing the displayport upwards
+      // and to the left when skating negatively.
+      *aDisplayPortOffset -= aVelocity < 0 ? aCompositionBounds : 0;
+    }
     return true;
   }
   return false;
 }
 
-const nsIntRect AsyncPanZoomController::CalculatePendingDisplayPort() {
-  float scale = mFrameMetrics.mResolution.width;
-  nsIntRect viewport = mFrameMetrics.mViewport;
-  viewport.ScaleRoundIn(1 / scale);
+const gfx::Rect AsyncPanZoomController::CalculatePendingDisplayPort(
+  const FrameMetrics& aFrameMetrics,
+  const gfx::Point& aVelocity,
+  const gfx::Point& aAcceleration,
+  double aEstimatedPaintDuration)
+{
+  // The multiplier we apply to a dimension's length if it is skating. That is,
+  // if it's going above MIN_SKATE_SPEED. We prefer to increase the size of the
+  // Y axis because it is more natural in the case that a user is reading a page
+  // that scrolls up/down. Note that one, both or neither of these may be used
+  // at any instant.
+  const float X_SKATE_SIZE_MULTIPLIER = 3.0f;
+  const float Y_SKATE_SIZE_MULTIPLIER = 3.5f;
 
-  gfx::Point scrollOffset = mFrameMetrics.mViewportScrollOffset;
-  gfx::Point velocity = GetVelocityVector();
+  // The multiplier we apply to a dimension's length if it is stationary. We
+  // prefer to increase the size of the Y axis because it is more natural in the
+  // case that a user is reading a page that scrolls up/down. Note that one,
+  // both or neither of these may be used at any instant.
+  const float X_STATIONARY_SIZE_MULTIPLIER = 1.5f;
+  const float Y_STATIONARY_SIZE_MULTIPLIER = 2.5f;
+
+  // If we don't get an estimated paint duration, we probably don't have any
+  // data. In this case, we're dealing with either a stationary frame or a first
+  // paint. In either of these cases, we can just assume it'll take 1 second to
+  // paint. Getting this correct is not important anyways since it's only really
+  // useful when accelerating, which can't be happening at this point.
+  double estimatedPaintDuration =
+    aEstimatedPaintDuration > EPSILON ? aEstimatedPaintDuration : 1.0;
+
+  float scale = aFrameMetrics.mZoom.width;
+  nsIntRect compositionBounds = aFrameMetrics.mCompositionBounds;
+  compositionBounds.ScaleInverseRoundIn(scale);
+  const gfx::Rect& scrollableRect = aFrameMetrics.mScrollableRect;
+
+  gfx::Point scrollOffset = aFrameMetrics.mScrollOffset;
 
-  // The displayport is relative to the current scroll offset. Here's a little
-  // diagram to make it easier to see:
-  //
-  //       - - - -
-  //       |     |
-  //    *************
-  //    *  |     |  *
-  // - -*- @------ -*- -
-  // |  *  |=====|  *  |
-  //    *  |=====|  *
-  // |  *  |=====|  *  |
-  // - -*- ------- -*- -
-  //    *  |     |  *
-  //    *************
-  //       |     |
-  //       - - - -
-  //
-  // The full --- area with === inside it is the actual viewport rect, the *** area
-  // is the displayport, and the - - - area is an imaginary additional page on all 4
-  // borders of the actual page. Notice that the displayport intersects half-way with
-  // each of the imaginary extra pages. The @ symbol at the top left of the
-  // viewport marks the current scroll offset. From the @ symbol to the far left
-  // and far top, it is clear that this distance is 1/4 of the displayport's
-  // height/width dimension.
-  const float STATIONARY_SIZE_MULTIPLIER = 2.0f;
   gfx::Rect displayPort(0, 0,
-                        viewport.width * STATIONARY_SIZE_MULTIPLIER,
-                        viewport.height * STATIONARY_SIZE_MULTIPLIER);
+                        compositionBounds.width * X_STATIONARY_SIZE_MULTIPLIER,
+                        compositionBounds.height * Y_STATIONARY_SIZE_MULTIPLIER);
 
   // If there's motion along an axis of movement, and it's above a threshold,
   // then we want to paint a larger area in the direction of that motion so that
   // it's less likely to checkerboard.
   bool enlargedX = EnlargeDisplayPortAlongAxis(
-    viewport.width, velocity.x, &displayPort.x, &displayPort.width);
+    X_SKATE_SIZE_MULTIPLIER, estimatedPaintDuration,
+    compositionBounds.width, aVelocity.x, aAcceleration.x,
+    &displayPort.x, &displayPort.width);
   bool enlargedY = EnlargeDisplayPortAlongAxis(
-    viewport.height, velocity.y, &displayPort.y, &displayPort.height);
+    Y_SKATE_SIZE_MULTIPLIER, estimatedPaintDuration,
+    compositionBounds.height, aVelocity.y, aAcceleration.y,
+    &displayPort.y, &displayPort.height);
 
   if (!enlargedX && !enlargedY) {
-    displayPort.x = -displayPort.width / 4;
-    displayPort.y = -displayPort.height / 4;
+    // Position the x and y such that the screen falls in the middle of the displayport.
+    displayPort.x = -(displayPort.width - compositionBounds.width) / 2;
+    displayPort.y = -(displayPort.height - compositionBounds.height) / 2;
   } else if (!enlargedX) {
-    displayPort.width = viewport.width;
+    displayPort.width = compositionBounds.width;
   } else if (!enlargedY) {
-    displayPort.height = viewport.height;
+    displayPort.height = compositionBounds.height;
+  }
+
+  // If we go over the bounds when trying to predict where we will be when this
+  // paint finishes, move it back into the range of the CSS content rect.
+  // FIXME/bug 780395: Generalize this. This code is pretty hacky as it will
+  // probably not work at all for RTL content. This is not intended to be
+  // incredibly accurate; it'll just prevent the entire displayport from being
+  // outside the content rect (which causes bad things to happen).
+  if (enlargedX || enlargedY) {
+    if (scrollOffset.x + compositionBounds.width > scrollableRect.width) {
+      scrollOffset.x -= compositionBounds.width + scrollOffset.x - scrollableRect.width;
+    } else if (scrollOffset.x < scrollableRect.x) {
+      scrollOffset.x = scrollableRect.x;
+    }
+    if (scrollOffset.y + compositionBounds.height > scrollableRect.height) {
+      scrollOffset.y -= compositionBounds.height + scrollOffset.y - scrollableRect.height;
+    } else if (scrollOffset.y < scrollableRect.y) {
+      scrollOffset.y = scrollableRect.y;
+    }
   }
 
   gfx::Rect shiftedDisplayPort = displayPort;
   shiftedDisplayPort.MoveBy(scrollOffset.x, scrollOffset.y);
-  displayPort = shiftedDisplayPort.Intersect(mFrameMetrics.mCSSContentRect);
+  displayPort = shiftedDisplayPort.Intersect(aFrameMetrics.mScrollableRect);
   displayPort.MoveBy(-scrollOffset.x, -scrollOffset.y);
 
-  // Round the displayport so we don't get any truncation, then get the nsIntRect
-  // from this.
-  displayPort.Round();
-  return nsIntRect(displayPort.x, displayPort.y, displayPort.width, displayPort.height);
+  return displayPort;
 }
 
 void AsyncPanZoomController::SetDPI(int aDPI) {
@@ -812,24 +879,31 @@ void AsyncPanZoomController::ScheduleComposite() {
 }
 
 void AsyncPanZoomController::RequestContentRepaint() {
-  mFrameMetrics.mDisplayPort = CalculatePendingDisplayPort();
+  mPreviousPaintStartTime = TimeStamp::Now();
 
-  gfx::Point oldScrollOffset = mLastPaintRequestMetrics.mViewportScrollOffset,
-             newScrollOffset = mFrameMetrics.mViewportScrollOffset;
+  double estimatedPaintSum = 0.0;
+  for (uint32_t i = 0; i < mPreviousPaintDurations.Length(); i++) {
+    estimatedPaintSum += mPreviousPaintDurations[i].ToSeconds();
+  }
+
+  double estimatedPaintDuration = 0.0;
+  if (estimatedPaintSum > EPSILON) {
+    estimatedPaintDuration = estimatedPaintSum / mPreviousPaintDurations.Length();
+  }
+
+  mFrameMetrics.mDisplayPort =
+    CalculatePendingDisplayPort(mFrameMetrics,
+                                GetVelocityVector(),
+                                GetAccelerationVector(),
+                                estimatedPaintDuration);
+
+  gfx::Point oldScrollOffset = mLastPaintRequestMetrics.mScrollOffset,
+             newScrollOffset = mFrameMetrics.mScrollOffset;
 
   // If we're trying to paint what we already think is painted, discard this
   // request since it's a pointless paint.
-  nsRect oldDisplayPort = nsRect(
-    mLastPaintRequestMetrics.mDisplayPort.x,
-    mLastPaintRequestMetrics.mDisplayPort.y,
-    mLastPaintRequestMetrics.mDisplayPort.width,
-    mLastPaintRequestMetrics.mDisplayPort.height);
-
-  gfx::Rect newDisplayPort = gfx::Rect(
-    mFrameMetrics.mDisplayPort.x,
-    mFrameMetrics.mDisplayPort.y,
-    mFrameMetrics.mDisplayPort.width,
-    mFrameMetrics.mDisplayPort.height);
+  gfx::Rect oldDisplayPort = mLastPaintRequestMetrics.mDisplayPort;
+  gfx::Rect newDisplayPort = mFrameMetrics.mDisplayPort;
 
   oldDisplayPort.MoveBy(oldScrollOffset.x, oldScrollOffset.y);
   newDisplayPort.MoveBy(newScrollOffset.x, newScrollOffset.y);
@@ -842,13 +916,27 @@ void AsyncPanZoomController::RequestContentRepaint() {
     return;
   }
 
-  if (mContentPainterStatus == CONTENT_IDLE) {
-    mContentPainterStatus = CONTENT_PAINTING;
-    mLastPaintRequestMetrics = mFrameMetrics;
+  // Cache the resolution since we're temporarily changing it to accomodate
+  // mixed resolution/zoom (normally we make them the same thing).
+  float actualResolution = mFrameMetrics.mResolution.width;
+  // Calculate the factor of acceleration based on the faster of the two axes.
+  float accelerationFactor =
+    clamped(NS_MAX(mX.GetAccelerationFactor(), mY.GetAccelerationFactor()),
+            float(MIN_ZOOM) / 2.0f, float(MAX_ZOOM));
+  // Scale down the resolution a bit based on acceleration.
+  mFrameMetrics.mResolution.width = mFrameMetrics.mResolution.height =
+    actualResolution / accelerationFactor;
+
+  // This message is compressed, so fire whether or not we already have a paint
+  // queued up. We need to know whether or not a paint was requested anyways,
+  // ofr the purposes of content calling window.scrollTo().
   mGeckoContentController->RequestContentRepaint(mFrameMetrics);
-  } else {
-    mContentPainterStatus = CONTENT_PAINTING_AND_PAINT_PENDING;
-  }
+  mLastPaintRequestMetrics = mFrameMetrics;
+  mWaitingForContentToPaint = true;
+
+  // Set the resolution back to what it was for the purpose of logic control.
+  mFrameMetrics.mResolution.width = mFrameMetrics.mResolution.height =
+    actualResolution;
 }
 
 bool AsyncPanZoomController::SampleContentTransformForFrame(const TimeStamp& aSampleTime,
@@ -888,20 +976,22 @@ bool AsyncPanZoomController::SampleContentTransformForFrame(const TimeStamp& aSa
       }
       double sampledPosition = gComputedTimingFunction->GetValue(animPosition);
 
-      mFrameMetrics.mResolution.width = mFrameMetrics.mResolution.height =
-        mEndZoomToMetrics.mResolution.width * sampledPosition +
-          mStartZoomToMetrics.mResolution.width * (1 - sampledPosition);
+      mFrameMetrics.mZoom.width = mFrameMetrics.mZoom.height =
+        mEndZoomToMetrics.mZoom.width * sampledPosition +
+          mStartZoomToMetrics.mZoom.width * (1 - sampledPosition);
 
-      mFrameMetrics.mViewportScrollOffset = gfx::Point(
-        mEndZoomToMetrics.mViewportScrollOffset.x * sampledPosition +
-          mStartZoomToMetrics.mViewportScrollOffset.x * (1 - sampledPosition),
-        mEndZoomToMetrics.mViewportScrollOffset.y * sampledPosition +
-          mStartZoomToMetrics.mViewportScrollOffset.y * (1 - sampledPosition)
+      mFrameMetrics.mScrollOffset = gfx::Point(
+        mEndZoomToMetrics.mScrollOffset.x * sampledPosition +
+          mStartZoomToMetrics.mScrollOffset.x * (1 - sampledPosition),
+        mEndZoomToMetrics.mScrollOffset.y * sampledPosition +
+          mStartZoomToMetrics.mScrollOffset.y * (1 - sampledPosition)
       );
 
       requestAnimationFrame = true;
 
       if (aSampleTime - mAnimationStartTime >= ZOOM_TO_DURATION) {
+        // Bring the resolution in sync with the zoom.
+        SetZoomAndResolution(mFrameMetrics.mZoom.width);
         mState = NOTHING;
         RequestContentRepaint();
       }
@@ -916,14 +1006,14 @@ bool AsyncPanZoomController::SampleContentTransformForFrame(const TimeStamp& aSa
     // transformed due to touches like panning or pinching. Eventually, the root
     // layer transform will become this during runtime, but we must wait for Gecko
     // to repaint.
-    localScaleX = mFrameMetrics.mResolution.width;
-    localScaleY = mFrameMetrics.mResolution.height;
+    localScaleX = mFrameMetrics.mZoom.width;
+    localScaleY = mFrameMetrics.mZoom.height;
 
     if (frame.IsScrollable()) {
-      metricsScrollOffset = frame.mViewportScrollOffset;
+      metricsScrollOffset = frame.GetScrollOffsetInLayerPixels();
     }
 
-    scrollOffset = mFrameMetrics.mViewportScrollOffset;
+    scrollOffset = mFrameMetrics.mScrollOffset;
   }
 
   nsIntPoint scrollCompensation(
@@ -953,13 +1043,15 @@ void AsyncPanZoomController::NotifyLayersUpdated(const FrameMetrics& aViewportFr
 
   mLastContentPaintMetrics = aViewportFrame;
 
-  if (mContentPainterStatus != CONTENT_IDLE) {
-    if (mContentPainterStatus == CONTENT_PAINTING_AND_PAINT_PENDING) {
-      mContentPainterStatus = CONTENT_IDLE;
-      RequestContentRepaint();
-    } else {
-      mContentPainterStatus = CONTENT_IDLE;
+  if (mWaitingForContentToPaint) {
+    // Remove the oldest sample we have if adding a new sample takes us over our
+    // desired number of samples.
+    if (mPreviousPaintDurations.Length() >= NUM_PAINT_DURATION_SAMPLES) {
+      mPreviousPaintDurations.RemoveElementAt(0);
     }
+
+    mPreviousPaintDurations.AppendElement(
+      TimeStamp::Now() - mPreviousPaintStartTime);
   } else {
     // No paint was requested, but we got one anyways. One possible cause of this
     // is that content could have fired a scrollTo(). In this case, we should take
@@ -972,10 +1064,7 @@ void AsyncPanZoomController::NotifyLayersUpdated(const FrameMetrics& aViewportFr
     case FLING:
     case TOUCHING:
     case WAITING_LISTENERS:
-      // FIXME/bug 784908: Scroll offset is stored in layer pixels in the rest
-      // of the layers code, but we want it in CSS pixels.
-      mFrameMetrics.mViewportScrollOffset =
-        aViewportFrame.mViewportScrollOffset / aViewportFrame.mResolution.width;
+      mFrameMetrics.mScrollOffset = aViewportFrame.mScrollOffset;
       break;
     // Don't clobber if we're in other states.
     default:
@@ -983,25 +1072,28 @@ void AsyncPanZoomController::NotifyLayersUpdated(const FrameMetrics& aViewportFr
     }
   }
 
+  mWaitingForContentToPaint = false;
+
   if (aIsFirstPaint || mFrameMetrics.IsDefault()) {
-    mContentPainterStatus = CONTENT_IDLE;
+    mPreviousPaintDurations.Clear();
 
     mX.CancelTouch();
     mY.CancelTouch();
-    mFrameMetrics = aViewportFrame;
-    mFrameMetrics.mResolution.width = 1 / mFrameMetrics.mResolution.width;
-    mFrameMetrics.mResolution.height = 1 / mFrameMetrics.mResolution.height;
-    SetPageRect(mFrameMetrics.mCSSContentRect);
 
-    // Bug 776413/fixme: Request a repaint as soon as a page is loaded so that
-    // we get a larger displayport. This is very bad because we're wasting a
-    // paint and not initializating the displayport correctly.
-    RequestContentRepaint();
+    // The composition bounds are not stored within the layers code, so we have
+    // to reset them back to what they were every time we overwrite them.
+    nsIntRect compositionBounds = mFrameMetrics.mCompositionBounds;
+    mFrameMetrics = aViewportFrame;
+    mFrameMetrics.mCompositionBounds = compositionBounds;
+
+    // On first paint, we want to bring zoom back in sync with resolution.
+    mFrameMetrics.mZoom = mFrameMetrics.mResolution;
+    SetPageRect(mFrameMetrics.mScrollableRect);
 
     mState = NOTHING;
-  } else if (!mFrameMetrics.mCSSContentRect.IsEqualEdges(aViewportFrame.mCSSContentRect)) {
-    mFrameMetrics.mCSSContentRect = aViewportFrame.mCSSContentRect;
-    SetPageRect(mFrameMetrics.mCSSContentRect);
+  } else if (!mFrameMetrics.mScrollableRect.IsEqualEdges(aViewportFrame.mScrollableRect)) {
+    mFrameMetrics.mScrollableRect = aViewportFrame.mScrollableRect;
+    SetPageRect(mFrameMetrics.mScrollableRect);
   }
 }
 
@@ -1010,11 +1102,27 @@ const FrameMetrics& AsyncPanZoomController::GetFrameMetrics() {
   return mFrameMetrics;
 }
 
-void AsyncPanZoomController::UpdateViewportSize(int aWidth, int aHeight) {
+void AsyncPanZoomController::UpdateCompositionBounds(const nsIntRect& aCompositionBounds) {
   MonitorAutoLock mon(mMonitor);
-  FrameMetrics metrics = GetFrameMetrics();
-  metrics.mViewport = nsIntRect(0, 0, aWidth, aHeight);
-  mFrameMetrics = metrics;
+
+  nsIntRect oldCompositionBounds = mFrameMetrics.mCompositionBounds;
+  mFrameMetrics.mCompositionBounds = aCompositionBounds;
+
+  // If the window had 0 dimensions before, or does now, we don't want to
+  // repaint or update the zoom since we'll run into rendering issues and/or
+  // divide-by-zero. This manifests itself as the screen flashing. If the page
+  // has gone out of view, the buffer will be cleared elsewhere anyways.
+  if (aCompositionBounds.width && aCompositionBounds.height &&
+      oldCompositionBounds.width && oldCompositionBounds.height) {
+    // Alter the zoom such that we can see the same width of the page as we used
+    // to be able to.
+    SetZoomAndResolution(mFrameMetrics.mResolution.width *
+                         aCompositionBounds.width /
+                         oldCompositionBounds.width);
+
+    // Repaint on a rotation so that our new resolution gets properly updated.
+    RequestContentRepaint();
+  }
 }
 
 void AsyncPanZoomController::CancelDefaultPanZoom() {
@@ -1032,27 +1140,29 @@ void AsyncPanZoomController::ZoomToRect(const gfxRect& aRect) {
   {
     MonitorAutoLock mon(mMonitor);
 
-    nsIntRect viewport = mFrameMetrics.mViewport;
-    gfx::Rect cssPageRect = mFrameMetrics.mCSSContentRect;
-    gfx::Point scrollOffset = mFrameMetrics.mViewportScrollOffset;
+    nsIntRect compositionBounds = mFrameMetrics.mCompositionBounds;
+    gfx::Rect cssPageRect = mFrameMetrics.mScrollableRect;
+    gfx::Point scrollOffset = mFrameMetrics.mScrollOffset;
 
     // If the rect is empty, treat it as a request to zoom out to the full page
     // size.
     if (zoomToRect.IsEmpty()) {
-      nsIntRect cssViewport = viewport;
-      cssViewport.ScaleRoundIn(1 / mFrameMetrics.mResolution.width);
-      cssViewport.MoveBy(nsIntPoint(NS_lround(scrollOffset.x), NS_lround(scrollOffset.y)));
+      // composition bounds in CSS coordinates
+      nsIntRect cssCompositionBounds = compositionBounds;
+      cssCompositionBounds.ScaleInverseRoundIn(mFrameMetrics.mZoom.width);
+      cssCompositionBounds.MoveBy(scrollOffset.x, scrollOffset.y);
 
-      float y = mFrameMetrics.mViewportScrollOffset.y;
-      float newHeight = cssViewport.height * cssPageRect.width / cssViewport.width;
-      float dh = cssViewport.height - newHeight;
+      float y = mFrameMetrics.mScrollOffset.y;
+      float newHeight =
+        cssCompositionBounds.height * cssPageRect.width / cssCompositionBounds.width;
+      float dh = cssCompositionBounds.height - newHeight;
 
       zoomToRect = gfx::Rect(0.0f,
                              y + dh/2,
                              cssPageRect.width,
                              y + dh/2 + newHeight);
     } else {
-      float targetRatio = float(viewport.width) / float(viewport.height);
+      float targetRatio = float(compositionBounds.width) / float(compositionBounds.height);
       float rectRatio = zoomToRect.width / zoomToRect.height;
 
       if (fabsf(targetRatio - rectRatio) < EPSILON) {
@@ -1072,25 +1182,27 @@ void AsyncPanZoomController::ZoomToRect(const gfxRect& aRect) {
       zoomToRect = zoomToRect.Intersect(cssPageRect);
     }
 
-    mEndZoomToMetrics.mResolution.width = mEndZoomToMetrics.mResolution.height =
-      NS_MIN(viewport.width / zoomToRect.width, viewport.height / zoomToRect.height);
+    mEndZoomToMetrics.mZoom.width = mEndZoomToMetrics.mZoom.height =
+      NS_MIN(compositionBounds.width / zoomToRect.width, compositionBounds.height / zoomToRect.height);
 
-    mEndZoomToMetrics.mResolution.width = mEndZoomToMetrics.mResolution.height =
-      clamped(mEndZoomToMetrics.mResolution.width, MIN_ZOOM, MAX_ZOOM);
+    mEndZoomToMetrics.mZoom.width = mEndZoomToMetrics.mZoom.height =
+      clamped(float(mEndZoomToMetrics.mZoom.width),
+              mMinZoom,
+              mMaxZoom);
 
     // Recalculate the zoom to rect using the new dimensions.
-    zoomToRect.width = viewport.width / mEndZoomToMetrics.mResolution.width;
-    zoomToRect.height = viewport.height / mEndZoomToMetrics.mResolution.height;
+    zoomToRect.width = compositionBounds.width / mEndZoomToMetrics.mZoom.width;
+    zoomToRect.height = compositionBounds.height / mEndZoomToMetrics.mZoom.height;
 
     // Clamp the zoom to rect to the CSS rect to make sure it fits.
     zoomToRect = zoomToRect.Intersect(cssPageRect);
 
     // Do one final recalculation to get the resolution.
-    mEndZoomToMetrics.mResolution.width = mEndZoomToMetrics.mResolution.height =
-      NS_MAX(viewport.width / zoomToRect.width, viewport.height / zoomToRect.height);
+    mEndZoomToMetrics.mZoom.width = mEndZoomToMetrics.mZoom.height =
+      NS_MAX(compositionBounds.width / zoomToRect.width, compositionBounds.height / zoomToRect.height);
 
     mStartZoomToMetrics = mFrameMetrics;
-    mEndZoomToMetrics.mViewportScrollOffset =
+    mEndZoomToMetrics.mScrollOffset =
       gfx::Point(zoomToRect.x, zoomToRect.y);
 
     mAnimationStartTime = TimeStamp::Now();
@@ -1144,5 +1256,19 @@ void AsyncPanZoomController::TimeoutTouchListeners() {
   ContentReceivedTouch(false);
 }
 
+void AsyncPanZoomController::SetZoomAndResolution(float aScale) {
+  mMonitor.AssertCurrentThreadOwns();
+  mFrameMetrics.mResolution.width = mFrameMetrics.mResolution.height =
+  mFrameMetrics.mZoom.width = mFrameMetrics.mZoom.height = aScale;
+}
+
+void AsyncPanZoomController::UpdateZoomConstraints(bool aAllowZoom,
+                                                   float aMinZoom,
+                                                   float aMaxZoom) {
+  mAllowZoom = aAllowZoom;
+  mMinZoom = aMinZoom;
+  mMaxZoom = aMaxZoom;
+}
+
 }
 }

gfx/layers/ipc/AsyncPanZoomController.h

@@ -14,6 +14,7 @@
 #include "mozilla/TimeStamp.h"
 #include "InputData.h"
 #include "Axis.h"
+#include "nsContentUtils.h"
 
 #include "base/message_loop.h"
 
@@ -97,17 +98,13 @@ public:
                                   nsInputEvent* aOutEvent);
 
   /**
-   * Updates the viewport size, i.e. the dimensions of the frame (not
-   * necessarily the screen) content will actually be rendered onto in device
-   * pixels for example, a subframe will not take the entire screen, but we
-   * still want to know how big it is in device pixels. Ideally we want to be
-   * using CSS pixels everywhere inside here, but in this case we need to know
-   * how large of a displayport to set so we use these dimensions plus some
-   * extra.
-   *
-   * XXX: Use nsIntRect instead.
+   * Updates the composition bounds, i.e. the dimensions of the final size of
+   * the frame this is tied to during composition onto, in device pixels. In
+   * general, this will just be:
+   * { x = 0, y = 0, width = surface.width, height = surface.height }, however
+   * there is no hard requirement for this.
    */
-  void UpdateViewportSize(int aWidth, int aHeight);
+  void UpdateCompositionBounds(const nsIntRect& aCompositionBounds);
 
   /**
    * We have found a scrollable subframe, so disable our machinery until we hit
@@ -134,6 +131,13 @@ public:
    */
   void ContentReceivedTouch(bool aPreventDefault);
 
+  /**
+   * Updates any zoom constraints contained in the <meta name="viewport"> tag.
+   * We try to obey everything it asks us elsewhere, but here we only handle
+   * minimum-scale, maximum-scale, and user-scalable.
+   */
+  void UpdateZoomConstraints(bool aAllowZoom, float aMinScale, float aMaxScale);
+
   // --------------------------------------------------------------------------
   // These methods must only be called on the compositor thread.
   //
@@ -193,6 +197,18 @@ public:
    */
   int GetDPI();
 
+  /**
+   * Recalculates the displayport. Ideally, this should paint an area bigger
+   * than the composite-to dimensions so that when you scroll down, you don't
+   * checkerboard immediately. This includes a bunch of logic, including
+   * algorithms to bias painting in the direction of the velocity.
+   */
+  static const gfx::Rect CalculatePendingDisplayPort(
+    const FrameMetrics& aFrameMetrics,
+    const gfx::Point& aVelocity,
+    const gfx::Point& aAcceleration,
+    double aEstimatedPaintDuration);
+
 protected:
   /**
    * Internal handler for ReceiveInputEvent(). Does all the actual work.
@@ -319,6 +335,11 @@ protected:
    */
   const gfx::Point GetVelocityVector();
 
+  /**
+   * Gets a vector of the acceleration factors of each axis.
+   */
+  const gfx::Point GetAccelerationVector();
+
   /**
    * Gets a reference to the first SingleTouchData from a MultiTouchInput.  This
    * gets only the first one and assumes the rest are either missing or not
@@ -343,15 +364,6 @@ protected:
    */
   void TrackTouch(const MultiTouchInput& aEvent);
 
-  /**
-   * Recalculates the displayport. Ideally, this should paint an area bigger
-   * than the actual screen. The viewport refers to the size of the screen,
-   * while the displayport is the area actually painted by Gecko. We paint
-   * a larger area than the screen so that when you scroll down, you don't
-   * checkerboard immediately.
-   */
-  const nsIntRect CalculatePendingDisplayPort();
-
   /**
    * Attempts to enlarge the displayport along a single axis. Returns whether or
    * not the displayport was enlarged. This will fail in circumstances where the
@@ -360,8 +372,13 @@ protected:
    * |aDisplayPortLength|. If enlarged, these will be updated with the new
    * metrics.
    */
-  bool EnlargeDisplayPortAlongAxis(float aViewport, float aVelocity,
-                                   float* aDisplayPortOffset, float* aDisplayPortLength);
+  static bool EnlargeDisplayPortAlongAxis(float aSkateSizeMultiplier,
+                                          double aEstimatedPaintDuration,
+                                          float aCompositionBounds,
+                                          float aVelocity,
+                                          float aAcceleration,
+                                          float* aDisplayPortOffset,
+                                          float* aDisplayPortLength);
 
   /**
    * Utility function to send updated FrameMetrics to Gecko so that it can paint
@@ -396,6 +413,14 @@ protected:
    */
   void TimeoutTouchListeners();
 
+  /**
+   * Utility function that sets the zoom and resolution simultaneously. This is
+   * useful when we want to repaint at the current zoom level.
+   *
+   * *** The monitor must be held while calling this.
+   */
+  void SetZoomAndResolution(float aScale);
+
 private:
   enum PanZoomState {
     NOTHING,        /* no touch-start events received */
@@ -409,25 +434,6 @@ private:
                     prevented the default actions yet. we still need to abort animations. */
   };
 
-  enum ContentPainterStatus {
-    // A paint may be happening, but it is not due to any action taken by this
-    // thread. For example, content could be invalidating itself, but
-    // AsyncPanZoomController has nothing to do with that.
-    CONTENT_IDLE,
-    // Set every time we dispatch a request for a repaint. When a
-    // ShadowLayersUpdate arrives and the metrics of this frame have changed, we
-    // toggle this off and assume that the paint has completed.
-    CONTENT_PAINTING,
-    // Set when we have a new displayport in the pipeline that we want to paint.
-    // When a ShadowLayersUpdate comes in, we dispatch a new repaint using
-    // mFrameMetrics.mDisplayPort (the most recent request) if this is toggled.
-    // This is distinct from CONTENT_PAINTING in that it signals that a repaint
-    // is happening, whereas this signals that we want to repaint as soon as the
-    // previous paint finishes. When the request is eventually made, it will use
-    // the most up-to-date metrics.
-   CONTENT_PAINTING_AND_PAINT_PENDING
-  };
-
   /**
    * Helper to set the current state. Holds the monitor before actually setting
    * it. If the monitor is already held by the current thread, it is safe to
@@ -467,10 +473,19 @@ private:
   AxisX mX;
   AxisY mY;
 
-  // Protects |mFrameMetrics|, |mLastContentPaintMetrics| and |mState|. Before
-  // manipulating |mFrameMetrics| or |mLastContentPaintMetrics|, the monitor
-  // should be held. When setting |mState|, either the SetState() function can
-  // be used, or the monitor can be held and then |mState| updated.
+  // Most up-to-date constraints on zooming. These should always be reasonable
+  // values; for example, allowing a min zoom of 0.0 can cause very bad things
+  // to happen.
+  bool mAllowZoom;
+  float mMinZoom;
+  float mMaxZoom;
+
+  // Protects |mFrameMetrics|, |mLastContentPaintMetrics|, |mState| and
+  // |mMetaViewportInfo|. Before manipulating |mFrameMetrics| or
+  // |mLastContentPaintMetrics|, the monitor should be held. When setting
+  // |mState|, either the SetState() function can be used, or the monitor can be
+  // held and then |mState| updated.  |mMetaViewportInfo| should be updated
+  // using UpdateMetaViewport().
   Monitor mMonitor;
 
   // The last time the compositor has sampled the content transform for this
@@ -491,13 +506,20 @@ private:
   // |mMonitor|; that is, it should be held whenever this is updated.
   PanZoomState mState;
 
+  // How long it took in the past to paint after a series of previous requests.
+  nsTArray<TimeDuration> mPreviousPaintDurations;
+
+  // When the last paint request started. Used to determine the duration of
+  // previous paints.
+  TimeStamp mPreviousPaintStartTime;
+
   int mDPI;
 
   // Stores the current paint status of the frame that we're managing. Repaints
   // may be triggered by other things (like content doing things), in which case
   // this status will not be updated. It is only changed when this class
   // requests a repaint.
-  ContentPainterStatus mContentPainterStatus;
+  bool mWaitingForContentToPaint;
 
   // Flag used to determine whether or not we should disable handling of the
   // next batch of touch events. This is used for sync scrolling of subframes.

gfx/layers/ipc/Axis.cpp

@@ -18,7 +18,7 @@ static const float EPSILON = 0.0001f;
  * or we get a touch point very far away from the previous position for some
  * reason.
  */
-static const float MAX_EVENT_ACCELERATION = 0.5f;
+static const float MAX_EVENT_ACCELERATION = 999.0f;
 
 /**
  * Amount of friction applied during flings.
@@ -95,15 +95,19 @@ void Axis::StartTouch(int32_t aPos) {
 }
 
 float Axis::GetDisplacementForDuration(float aScale, const TimeDuration& aDelta) {
-  float velocityFactor = powf(ACCELERATION_MULTIPLIER,
-                              NS_MAX(0, (mAcceleration - 4) * 3));
-  float displacement = mVelocity * aScale * aDelta.ToMilliseconds() * velocityFactor;
+  if (fabsf(mVelocity) < VELOCITY_THRESHOLD) {
+    mAcceleration = 0;
+  }
+
+  float accelerationFactor = GetAccelerationFactor();
+  float displacement = mVelocity * aScale * aDelta.ToMilliseconds() * accelerationFactor;
   // If this displacement will cause an overscroll, throttle it. Can potentially
   // bring it to 0 even if the velocity is high.
   if (DisplacementWillOverscroll(displacement) != OVERSCROLL_NONE) {
     // No need to have a velocity along this axis anymore; it won't take us
     // anywhere, so we're just spinning needlessly.
     mVelocity = 0.0f;
+    mAcceleration = 0;
     displacement -= DisplacementWillOverscrollAmount(displacement);
   }
   return displacement;
@@ -140,12 +144,12 @@ bool Axis::FlingApplyFrictionOrCancel(const TimeDuration& aDelta) {
 }
 
 Axis::Overscroll Axis::GetOverscroll() {
-  // If the current pan takes the viewport to the left of or above the current
+  // If the current pan takes the window to the left of or above the current
   // page rect.
   bool minus = GetOrigin() < GetPageStart();
-  // If the current pan takes the viewport to the right of or below the current
+  // If the current pan takes the window to the right of or below the current
   // page rect.
-  bool plus = GetViewportEnd() > GetPageEnd();
+  bool plus = GetCompositionEnd() > GetPageEnd();
   if (minus && plus) {
     return OVERSCROLL_BOTH;
   }
@@ -161,19 +165,20 @@ Axis::Overscroll Axis::GetOverscroll() {
 float Axis::GetExcess() {
   switch (GetOverscroll()) {
   case OVERSCROLL_MINUS: return GetOrigin() - GetPageStart();
-  case OVERSCROLL_PLUS: return GetViewportEnd() - GetPageEnd();
-  case OVERSCROLL_BOTH: return (GetViewportEnd() - GetPageEnd()) + (GetPageStart() - GetOrigin());
+  case OVERSCROLL_PLUS: return GetCompositionEnd() - GetPageEnd();
+  case OVERSCROLL_BOTH: return (GetCompositionEnd() - GetPageEnd()) +
+                               (GetPageStart() - GetOrigin());
   default: return 0;
   }
 }
 
 Axis::Overscroll Axis::DisplacementWillOverscroll(int32_t aDisplacement) {
-  // If the current pan plus a displacement takes the viewport to the left of or
+  // If the current pan plus a displacement takes the window to the left of or
   // above the current page rect.
   bool minus = GetOrigin() + aDisplacement < GetPageStart();
-  // If the current pan plus a displacement takes the viewport to the right of or
+  // If the current pan plus a displacement takes the window to the right of or
   // below the current page rect.
-  bool plus = GetViewportEnd() + aDisplacement > GetPageEnd();
+  bool plus = GetCompositionEnd() + aDisplacement > GetPageEnd();
   if (minus && plus) {
     return OVERSCROLL_BOTH;
   }
@@ -189,7 +194,7 @@ Axis::Overscroll Axis::DisplacementWillOverscroll(int32_t aDisplacement) {
 float Axis::DisplacementWillOverscrollAmount(int32_t aDisplacement) {
   switch (DisplacementWillOverscroll(aDisplacement)) {
   case OVERSCROLL_MINUS: return (GetOrigin() + aDisplacement) - GetPageStart();
-  case OVERSCROLL_PLUS: return (GetViewportEnd() + aDisplacement) - GetPageEnd();
+  case OVERSCROLL_PLUS: return (GetCompositionEnd() + aDisplacement) - GetPageEnd();
   // Don't handle overscrolled in both directions; a displacement can't cause
   // this, it must have already been zoomed out too far.
   default: return 0;
@@ -201,7 +206,7 @@ Axis::Overscroll Axis::ScaleWillOverscroll(float aScale, int32_t aFocus) {
 
   bool both = ScaleWillOverscrollBothSides(aScale);
   bool minus = originAfterScale < GetPageStart() * aScale;
-  bool plus = (originAfterScale + GetViewportLength()) > GetPageEnd() * aScale;
+  bool plus = (originAfterScale + GetCompositionLength()) > GetPageEnd() * aScale;
 
   if ((minus && plus) || both) {
     return OVERSCROLL_BOTH;
@@ -219,7 +224,8 @@ float Axis::ScaleWillOverscrollAmount(float aScale, int32_t aFocus) {
   float originAfterScale = (GetOrigin() + aFocus) * aScale - aFocus;
   switch (ScaleWillOverscroll(aScale, aFocus)) {
   case OVERSCROLL_MINUS: return originAfterScale - GetPageStart() * aScale;
-  case OVERSCROLL_PLUS: return (originAfterScale + GetViewportLength()) - GetPageEnd() * aScale;
+  case OVERSCROLL_PLUS: return (originAfterScale + GetCompositionLength()) -
+                               NS_lround(GetPageEnd() * aScale);
   // Don't handle OVERSCROLL_BOTH. Client code is expected to deal with it.
   default: return 0;
   }
@@ -229,8 +235,12 @@ float Axis::GetVelocity() {
   return mVelocity;
 }
 
-float Axis::GetViewportEnd() {
-  return GetOrigin() + GetViewportLength();
+float Axis::GetAccelerationFactor() {
+  return powf(ACCELERATION_MULTIPLIER, NS_MAX(0, (mAcceleration - 4) * 3));
+}
+
+float Axis::GetCompositionEnd() {
+  return GetOrigin() + GetCompositionLength();
 }
 
 float Axis::GetPageEnd() {
@@ -238,40 +248,44 @@ float Axis::GetPageEnd() {
 }
 
 float Axis::GetOrigin() {
-  gfx::Point origin = mAsyncPanZoomController->GetFrameMetrics().mViewportScrollOffset;
+  gfx::Point origin = mAsyncPanZoomController->GetFrameMetrics().mScrollOffset;
   return GetPointOffset(origin);
 }
 
-float Axis::GetViewportLength() {
-  nsIntRect viewport = mAsyncPanZoomController->GetFrameMetrics().mViewport;
-  gfx::Rect scaledViewport = gfx::Rect(viewport.x, viewport.y, viewport.width, viewport.height);
-  scaledViewport.ScaleRoundIn(1 / mAsyncPanZoomController->GetFrameMetrics().mResolution.width);
-  return GetRectLength(scaledViewport);
+float Axis::GetCompositionLength() {
+  nsIntRect compositionBounds =
+    mAsyncPanZoomController->GetFrameMetrics().mCompositionBounds;
+  gfx::Rect scaledCompositionBounds =
+    gfx::Rect(compositionBounds.x, compositionBounds.y,
+              compositionBounds.width, compositionBounds.height);
+  scaledCompositionBounds.ScaleInverseRoundIn(
+    mAsyncPanZoomController->GetFrameMetrics().mZoom.width);
+  return GetRectLength(scaledCompositionBounds);
 }
 
 float Axis::GetPageStart() {
-  gfx::Rect pageRect = mAsyncPanZoomController->GetFrameMetrics().mCSSContentRect;
+  gfx::Rect pageRect = mAsyncPanZoomController->GetFrameMetrics().mScrollableRect;
   return GetRectOffset(pageRect);
 }
 
 float Axis::GetPageLength() {
-  gfx::Rect pageRect = mAsyncPanZoomController->GetFrameMetrics().mCSSContentRect;
+  gfx::Rect pageRect = mAsyncPanZoomController->GetFrameMetrics().mScrollableRect;
   return GetRectLength(pageRect);
 }
 
 bool Axis::ScaleWillOverscrollBothSides(float aScale) {
   const FrameMetrics& metrics = mAsyncPanZoomController->GetFrameMetrics();
 
-  gfx::Rect cssContentRect = metrics.mCSSContentRect;
+  gfx::Rect cssContentRect = metrics.mScrollableRect;
 
-  float currentScale = metrics.mResolution.width;
-  gfx::Rect viewport = gfx::Rect(metrics.mViewport.x,
-                                 metrics.mViewport.y,
-                                 metrics.mViewport.width,
-                                 metrics.mViewport.height);
-  viewport.ScaleRoundIn(1 / (currentScale * aScale));
+  float currentScale = metrics.mZoom.width;
+  nsIntRect compositionBounds = metrics.mCompositionBounds;
+  gfx::Rect scaledCompositionBounds =
+    gfx::Rect(compositionBounds.x, compositionBounds.y,
+              compositionBounds.width, compositionBounds.height);
+  scaledCompositionBounds.ScaleInverseRoundIn(currentScale * aScale);
 
-  return GetRectLength(cssContentRect) < GetRectLength(viewport);
+  return GetRectLength(cssContentRect) < GetRectLength(scaledCompositionBounds);
 }
 
 AxisX::AxisX(AsyncPanZoomController* aAsyncPanZoomController)

gfx/layers/ipc/Axis.h

@@ -116,6 +116,12 @@ public:
    */
   float GetExcess();
 
+  /**
+   * Gets the factor of acceleration applied to the velocity, based on the
+   * amount of flings that have been done successively.
+   */
+  float GetAccelerationFactor();
+
   /**
    * Gets the raw velocity of this axis at this moment.
    */
@@ -165,10 +171,10 @@ public:
   bool ScaleWillOverscrollBothSides(float aScale);
 
   float GetOrigin();
-  float GetViewportLength();
+  float GetCompositionLength();
   float GetPageStart();
   float GetPageLength();
-  float GetViewportEnd();
+  float GetCompositionEnd();
   float GetPageEnd();
 
   virtual float GetPointOffset(const gfx::Point& aPoint) = 0;

gfx/layers/ipc/CompositorParent.cpp

@@ -467,8 +467,8 @@ private:
     }
     const FrameMetrics& fm = c->GetFrameMetrics();
     gfx3DMatrix m(aContainer->GetTransform());
-    m.Translate(gfxPoint3D(-fm.mViewportScrollOffset.x,
-                           -fm.mViewportScrollOffset.y, 0));
+    m.Translate(gfxPoint3D(-fm.GetScrollOffsetInLayerPixels().x,
+                           -fm.GetScrollOffsetInLayerPixels().y, 0));
 
     // The transform already takes the resolution scale into account.  Since we
     // will apply the resolution scale again when computing the effective
@@ -787,30 +787,43 @@ CompositorParent::TransformShadowTree(TimeStamp aCurrentFrame)
 
     float rootScaleX = rootTransform.GetXScale(),
           rootScaleY = rootTransform.GetYScale();
+    // The ratio of layers pixels to device pixels.  The Java
+    // compositor wants to see values in units of device pixels, so we
+    // map our FrameMetrics values to that space.  This is not exposed
+    // as a FrameMetrics helper because it's a deprecated conversion.
+    float devPixelRatioX = 1 / rootScaleX, devPixelRatioY = 1 / rootScaleY;
+
+    gfx::Point scrollOffsetLayersPixels(metrics.GetScrollOffsetInLayerPixels());
+    nsIntPoint scrollOffsetDevPixels(
+      NS_lround(scrollOffsetLayersPixels.x * devPixelRatioX),
+      NS_lround(scrollOffsetLayersPixels.y * devPixelRatioY));
 
     if (mIsFirstPaint) {
       mContentRect = metrics.mContentRect;
-      const gfx::Point& scrollOffset = metrics.mViewportScrollOffset;
-      SetFirstPaintViewport(nsIntPoint(NS_lround(scrollOffset.x),
-                                       NS_lround(scrollOffset.y)),
+      SetFirstPaintViewport(scrollOffsetDevPixels,
                             1/rootScaleX,
                             mContentRect,
-                            metrics.mCSSContentRect);
+                            metrics.mScrollableRect);
       mIsFirstPaint = false;
     } else if (!metrics.mContentRect.IsEqualEdges(mContentRect)) {
       mContentRect = metrics.mContentRect;
-      SetPageRect(metrics.mCSSContentRect);
+      SetPageRect(metrics.mScrollableRect);
     }
 
     // We synchronise the viewport information with Java after sending the above
     // notifications, so that Java can take these into account in its response.
     // Calculate the absolute display port to send to Java
-    nsIntRect displayPort = metrics.mDisplayPort;
-    gfx::Point scrollOffset = metrics.mViewportScrollOffset;
-    displayPort.x += NS_lround(scrollOffset.x);
-    displayPort.y += NS_lround(scrollOffset.y);
+    gfx::Rect displayPortLayersPixels(metrics.mDisplayPort);
+    nsIntRect displayPortDevPixels(
+      NS_lround(displayPortLayersPixels.x * devPixelRatioX),
+      NS_lround(displayPortLayersPixels.y * devPixelRatioY),
+      NS_lround(displayPortLayersPixels.width * devPixelRatioX),
+      NS_lround(displayPortLayersPixels.height * devPixelRatioY));
 
-    SyncViewportInfo(displayPort, 1/rootScaleX, mLayersUpdated,
+    displayPortDevPixels.x += scrollOffsetDevPixels.x;
+    displayPortDevPixels.y += scrollOffsetDevPixels.y;
+
+    SyncViewportInfo(displayPortDevPixels, 1/rootScaleX, mLayersUpdated,
                      mScrollOffset, mXScale, mYScale);
     mLayersUpdated = false;
 
@@ -825,8 +838,7 @@ CompositorParent::TransformShadowTree(TimeStamp aCurrentFrame)
 
     nsIntPoint metricsScrollOffset(0, 0);
     if (metrics.IsScrollable()) {
-      metricsScrollOffset =
-        nsIntPoint(NS_lround(scrollOffset.x), NS_lround(scrollOffset.y));
+      metricsScrollOffset = scrollOffsetDevPixels;
     }
 
     nsIntPoint scrollCompensation(

gfx/layers/opengl/ReusableTileStoreOGL.cpp

@@ -37,7 +37,9 @@ ReusableTileStoreOGL::InvalidateTiles(TiledThebesLayerOGL* aLayer,
           // This will be incorrect when the transform involves rotation, but
           // it'd be quite hard to retain invalid tiles correctly in this
           // situation anyway.
-          renderBounds = parent->GetEffectiveTransform().TransformBounds(gfxRect(metrics.mDisplayPort));
+          renderBounds = parent->GetEffectiveTransform().TransformBounds(
+              gfxRect(metrics.mDisplayPort.x, metrics.mDisplayPort.y,
+                      metrics.mDisplayPort.width, metrics.mDisplayPort.height));
           break;
       }
   }
@@ -217,10 +219,14 @@ ReusableTileStoreOGL::DrawTiles(TiledThebesLayerOGL* aLayer,
         scrollableLayer = parent;
       if (!parentMetrics.mDisplayPort.IsEmpty() && scrollableLayer) {
           displayPort = parent->GetEffectiveTransform().
-            TransformBounds(gfxRect(parentMetrics.mDisplayPort));
+            TransformBounds(gfxRect(
+              parentMetrics.mDisplayPort.x, parentMetrics.mDisplayPort.y,
+              parentMetrics.mDisplayPort.width, parentMetrics.mDisplayPort.height));
           const FrameMetrics& metrics = scrollableLayer->GetFrameMetrics();
           const nsIntSize& contentSize = metrics.mContentRect.Size();
-          const gfx::Point& scrollOffset = metrics.mViewportScrollOffset;
+          gfx::Point scrollOffset =
+            gfx::Point(metrics.mScrollOffset.x * metrics.LayersPixelsPerCSSPixel().width,
+                       metrics.mScrollOffset.y * metrics.LayersPixelsPerCSSPixel().height);
           const nsIntPoint& contentOrigin = metrics.mContentRect.TopLeft() -
             nsIntPoint(NS_lround(scrollOffset.x), NS_lround(scrollOffset.y));
           gfxRect contentRect = gfxRect(contentOrigin.x, contentOrigin.y,

gfx/skia/src/effects/gradients/SkGradientShader.cpp

@@ -473,12 +473,14 @@ const SkPMColor* SkGradientShaderBase::getCache32() const {
     }
 
     // Write the clamp colours into the first and last entries of fCache32
-    fCache32[kCache32ClampLower] = SkPackARGB32(fCacheAlpha,
+    fCache32[kCache32ClampLower] = SkPremultiplyARGBInline(SkMulDiv255Round(SkColorGetA(fOrigColors[0]),
+                                                                            fCacheAlpha),
                                                            SkColorGetR(fOrigColors[0]),
                                                            SkColorGetG(fOrigColors[0]),
                                                            SkColorGetB(fOrigColors[0]));
 
-    fCache32[kCache32ClampUpper] = SkPackARGB32(fCacheAlpha,
+    fCache32[kCache32ClampUpper] = SkPremultiplyARGBInline(SkMulDiv255Round(SkColorGetA(fOrigColors[fColorCount - 1]),
+                                                                            fCacheAlpha),
                                                            SkColorGetR(fOrigColors[fColorCount - 1]),
                                                            SkColorGetG(fOrigColors[fColorCount - 1]),
                                                            SkColorGetB(fOrigColors[fColorCount - 1]));

ipc/glue/IPCMessageUtils.h

@@ -960,25 +960,31 @@ struct ParamTraits<mozilla::layers::FrameMetrics>
 
   static void Write(Message* aMsg, const paramType& aParam)
   {
-    WriteParam(aMsg, aParam.mCSSContentRect);
+    WriteParam(aMsg, aParam.mScrollableRect);
     WriteParam(aMsg, aParam.mViewport);
     WriteParam(aMsg, aParam.mContentRect);
-    WriteParam(aMsg, aParam.mViewportScrollOffset);
+    WriteParam(aMsg, aParam.mScrollOffset);
     WriteParam(aMsg, aParam.mDisplayPort);
+    WriteParam(aMsg, aParam.mCompositionBounds);
     WriteParam(aMsg, aParam.mScrollId);
     WriteParam(aMsg, aParam.mResolution);
+    WriteParam(aMsg, aParam.mZoom);
+    WriteParam(aMsg, aParam.mDevPixelsPerCSSPixel);
     WriteParam(aMsg, aParam.mMayHaveTouchListeners);
   }
 
   static bool Read(const Message* aMsg, void** aIter, paramType* aResult)
   {
-    return (ReadParam(aMsg, aIter, &aResult->mCSSContentRect) &&
+    return (ReadParam(aMsg, aIter, &aResult->mScrollableRect) &&
             ReadParam(aMsg, aIter, &aResult->mViewport) &&
             ReadParam(aMsg, aIter, &aResult->mContentRect) &&
-            ReadParam(aMsg, aIter, &aResult->mViewportScrollOffset) &&
+            ReadParam(aMsg, aIter, &aResult->mScrollOffset) &&
             ReadParam(aMsg, aIter, &aResult->mDisplayPort) &&
+            ReadParam(aMsg, aIter, &aResult->mCompositionBounds) &&
             ReadParam(aMsg, aIter, &aResult->mScrollId) &&
             ReadParam(aMsg, aIter, &aResult->mResolution) &&
+            ReadParam(aMsg, aIter, &aResult->mZoom) &&
+            ReadParam(aMsg, aIter, &aResult->mDevPixelsPerCSSPixel) &&
             ReadParam(aMsg, aIter, &aResult->mMayHaveTouchListeners));
   }
 };

js/src/ion/IonBuilder.cpp

@@ -5914,24 +5914,7 @@ IonBuilder::jsop_getprop(HandlePropertyName name)
         return makeCallBarrier(getter, 0, false, types, barrier);
     }
 
-    // If the input is guaranteed to be an object, then we want
-    // to specialize it via an slot load or an IC.  If it's
-    // guaranteed to be an object or NULL, then we do the same
-    // thing except prefixed by a fallible unbox.
-    bool targetIsObject = (unary.ival == MIRType_Object);
-
-    if (!targetIsObject) {
-        if (unaryTypes.inTypes->objectOrSentinel()) {
-            // Fallibly unwrap the object before getprop.  Getprop
-            // on null or undefined will cause exception anyway.
-            MUnbox *unbox = MUnbox::New(obj, MIRType_Object, MUnbox::Fallible);
-            current->add(unbox);
-            obj = unbox;
-            targetIsObject = true;
-        }
-    }
-
-    if (targetIsObject) {
+    if (unary.ival == MIRType_Object) {
         MIRType rvalType = MIRType_Value;
         if (!barrier && !IsNullOrUndefined(unary.rval))
             rvalType = unary.rval;

js/src/ion/TypeOracle.cpp

@@ -373,16 +373,6 @@ TypeInferenceOracle::elementReadGeneric(JSScript *script, jsbytecode *pc, bool *
 
     *cacheable = (obj == MIRType_Object &&
                   (id == MIRType_Value || id == MIRType_Int32 || id == MIRType_String));
-
-    // Turn off cacheing if the element is int32 and we've seen non-native objects as the target
-    // of this getelem.
-    if (*cacheable) {
-        if (id == MIRType_Int32) {
-            if (script->analysis()->getCode(pc).nonNativeGetElement)
-                *cacheable = false;
-        }
-    }
-
     if (*cacheable)
         *monitorResult = (id == MIRType_String || script->analysis()->getCode(pc).getStringElement);
     else

js/src/jsanalyze.h

@@ -113,7 +113,6 @@ class Bytecode
      */
     bool arrayWriteHole: 1;  /* SETELEM which has written to an array hole. */
     bool getStringElement:1; /* GETELEM which has accessed string properties. */
-    bool nonNativeGetElement:1; /* GETELEM on a non-native object. */
     bool accessGetter: 1;    /* Property read on a shape with a getter hook. */
     bool notIdempotent: 1;   /* Don't use an idempotent cache for this property read. */
 

js/src/jsinfer.h

@@ -571,19 +571,6 @@ class StackTypeSet : public TypeSet
     /* Whether this value may be an object. */
     bool maybeObject() { return unknownObject() || baseObjectCount() > 0; }
 
-    /*
-     * Whether this typeset represents a potentially sentineled object value:
-     * where the value may be an object, but maybe potentially null or undefined.
-     * This returns false in situations where the value cannot ever be an object.
-     */
-    bool objectOrSentinel() {
-        TypeFlags flags = TYPE_FLAG_UNDEFINED | TYPE_FLAG_NULL | TYPE_FLAG_ANYOBJECT;
-        if (baseFlags() & (~flags & TYPE_FLAG_BASE_MASK))
-            return false;
-
-        return hasAnyFlag(TYPE_FLAG_ANYOBJECT) || baseObjectCount() > 0;
-    }
-
     /* Whether the type set contains objects with any of a set of flags. */
     bool hasObjectFlags(JSContext *cx, TypeObjectFlags flags);
 

js/src/jsinterpinlines.h

@@ -686,19 +686,6 @@ GetObjectElementOperation(JSContext *cx, JSOp op, HandleObject obj, const Value
     }
 #endif
 
-    bool updateAnalysis = false;
-    RootedScript script(cx, NULL);
-    jsbytecode *pc = NULL;
-    if (!cx->fp()->beginsIonActivation()) {
-        // Don't call GetPcScript from inside Ion since it's expensive.
-        types::TypeScript::GetPcScript(cx, &script, &pc);
-        if (script->hasAnalysis())
-            updateAnalysis = true;
-    }
-
-    if (updateAnalysis && !obj->isNative())
-        script->analysis()->getCode(pc).nonNativeGetElement = true;
-
     uint32_t index;
     if (IsDefinitelyIndex(rref, &index)) {
         do {
@@ -716,8 +703,16 @@ GetObjectElementOperation(JSContext *cx, JSOp op, HandleObject obj, const Value
                 return false;
         } while(0);
     } else {
-        if (updateAnalysis)
+        if (!cx->fp()->beginsIonActivation()) {
+            // Don't update getStringElement if called from Ion code, since
+            // ion::GetPcScript is expensive.
+            RootedScript script(cx);
+            jsbytecode *pc;
+            types::TypeScript::GetPcScript(cx, &script, &pc);
+
+            if (script->hasAnalysis())
                 script->analysis()->getCode(pc).getStringElement = true;
+        }
 
         SpecialId special;
         res.set(rref);

js/xpconnect/src/dictionary_helper_gen.conf

@@ -21,7 +21,8 @@ dictionaries = [
      [ 'CameraRegion', 'nsIDOMCameraManager.idl' ],
      [ 'CameraPosition', 'nsIDOMCameraManager.idl' ],
      [ 'CameraSelector', 'nsIDOMCameraManager.idl' ],
-     [ 'CameraPictureOptions', 'nsIDOMCameraManager.idl' ]
+     [ 'CameraPictureOptions', 'nsIDOMCameraManager.idl' ],
+     [ 'CameraRecordingOptions', 'nsIDOMCameraManager.idl' ]
    ]
 
 # include file names

layout/base/nsDisplayList.cpp

@@ -575,6 +575,7 @@ static void RecordFrameMetrics(nsIFrame* aForFrame,
                                bool aMayHaveTouchListeners) {
   nsPresContext* presContext = aForFrame->PresContext();
   int32_t auPerDevPixel = presContext->AppUnitsPerDevPixel();
+  float auPerCSSPixel = nsPresContext::AppUnitsPerCSSPixel();
 
   nsIntRect visible = aVisibleRect.ScaleToNearestPixels(
     aContainerParameters.mXScale, aContainerParameters.mYScale, auPerDevPixel);
@@ -582,12 +583,18 @@ static void RecordFrameMetrics(nsIFrame* aForFrame,
 
   FrameMetrics metrics;
 
-  metrics.mViewport = aViewport.ScaleToNearestPixels(
-    aContainerParameters.mXScale, aContainerParameters.mYScale, auPerDevPixel);
+  metrics.mViewport = mozilla::gfx::Rect(
+    NSAppUnitsToDoublePixels(aViewport.x, auPerDevPixel),
+    NSAppUnitsToDoublePixels(aViewport.y, auPerDevPixel),
+    NSAppUnitsToDoublePixels(aViewport.width, auPerDevPixel),
+    NSAppUnitsToDoublePixels(aViewport.height, auPerDevPixel));
 
   if (aDisplayPort) {
-    metrics.mDisplayPort = aDisplayPort->ScaleToNearestPixels(
-      aContainerParameters.mXScale, aContainerParameters.mYScale, auPerDevPixel);
+    metrics.mDisplayPort = mozilla::gfx::Rect(
+      NSAppUnitsToDoublePixels(aDisplayPort->x, auPerDevPixel),
+      NSAppUnitsToDoublePixels(aDisplayPort->y, auPerDevPixel),
+      NSAppUnitsToDoublePixels(aDisplayPort->width, auPerDevPixel),
+      NSAppUnitsToDoublePixels(aDisplayPort->height, auPerDevPixel));
   }
 
   nsIScrollableFrame* scrollableFrame = nullptr;
@@ -598,7 +605,7 @@ static void RecordFrameMetrics(nsIFrame* aForFrame,
     nsRect contentBounds = scrollableFrame->GetScrollRange();
     contentBounds.width += scrollableFrame->GetScrollPortRect().width;
     contentBounds.height += scrollableFrame->GetScrollPortRect().height;
-    metrics.mCSSContentRect =
+    metrics.mScrollableRect =
       mozilla::gfx::Rect(nsPresContext::AppUnitsToFloatCSSPixels(contentBounds.x),
                          nsPresContext::AppUnitsToFloatCSSPixels(contentBounds.y),
                          nsPresContext::AppUnitsToFloatCSSPixels(contentBounds.width),
@@ -606,13 +613,13 @@ static void RecordFrameMetrics(nsIFrame* aForFrame,
     metrics.mContentRect = contentBounds.ScaleToNearestPixels(
       aContainerParameters.mXScale, aContainerParameters.mYScale, auPerDevPixel);
     nsPoint scrollPosition = scrollableFrame->GetScrollPosition();
-    metrics.mViewportScrollOffset = mozilla::gfx::Point(
-      NSAppUnitsToDoublePixels(scrollPosition.x, auPerDevPixel) * aContainerParameters.mXScale,
-      NSAppUnitsToDoublePixels(scrollPosition.y, auPerDevPixel) * aContainerParameters.mYScale);
+    metrics.mScrollOffset = mozilla::gfx::Point(
+      NSAppUnitsToDoublePixels(scrollPosition.x, auPerCSSPixel),
+      NSAppUnitsToDoublePixels(scrollPosition.y, auPerCSSPixel));
   }
   else {
     nsRect contentBounds = aForFrame->GetRect();
-    metrics.mCSSContentRect =
+    metrics.mScrollableRect =
       mozilla::gfx::Rect(nsPresContext::AppUnitsToFloatCSSPixels(contentBounds.x),
                          nsPresContext::AppUnitsToFloatCSSPixels(contentBounds.y),
                          nsPresContext::AppUnitsToFloatCSSPixels(contentBounds.width),
@@ -626,6 +633,8 @@ static void RecordFrameMetrics(nsIFrame* aForFrame,
   nsIPresShell* presShell = presContext->GetPresShell();
   metrics.mResolution = gfxSize(presShell->GetXResolution(), presShell->GetYResolution());
 
+  metrics.mDevPixelsPerCSSPixel = auPerCSSPixel / auPerDevPixel;
+
   metrics.mMayHaveTouchListeners = aMayHaveTouchListeners;
 
   aRoot->SetFrameMetrics(metrics);
@@ -1070,8 +1079,10 @@ void nsDisplayList::PaintForFrame(nsDisplayListBuilder* aBuilder,
     }
   }
 
+  nsRect viewport(aBuilder->ToReferenceFrame(aForFrame), aForFrame->GetSize());
+
   RecordFrameMetrics(aForFrame, rootScrollFrame,
-                     root, mVisibleRect, mVisibleRect,
+                     root, mVisibleRect, viewport,
                      (usingDisplayport ? &displayport : nullptr), id,
                      containerParameters, mayHaveTouchListeners);
   if (usingDisplayport &&

layout/ipc/RenderFrameParent.cpp

@@ -158,7 +158,7 @@ ComputeShadowTreeTransform(nsIFrame* aContainerFrame,
   nsIntPoint scrollOffset =
     aConfig.mScrollOffset.ToNearestPixels(auPerDevPixel);
   // metricsScrollOffset is in layer coordinates.
-  gfx::Point metricsScrollOffset = aMetrics->mViewportScrollOffset;
+  gfx::Point metricsScrollOffset = aMetrics->GetScrollOffsetInLayerPixels();
   nsIntPoint roundedMetricsScrollOffset =
     nsIntPoint(NS_lround(metricsScrollOffset.x), NS_lround(metricsScrollOffset.y));
 
@@ -217,7 +217,9 @@ BuildListForLayer(Layer* aLayer,
     nsRect bounds;
     {
       nscoord auPerDevPixel = aSubdocFrame->PresContext()->AppUnitsPerDevPixel();
-      bounds = metrics->mViewport.ToAppUnits(auPerDevPixel);
+      gfx::Rect viewport = metrics->mViewport;
+      bounds = nsIntRect(viewport.x, viewport.y,
+                         viewport.width, viewport.height).ToAppUnits(auPerDevPixel);
       ApplyTransform(bounds, tmpTransform, auPerDevPixel);
 
     }
@@ -362,6 +364,7 @@ BuildViewMap(ViewMap& oldContentViews, ViewMap& newContentViews,
   if (metrics.IsScrollable()) {
     nscoord auPerDevPixel = aFrameLoader->GetPrimaryFrameOfOwningContent()
                                         ->PresContext()->AppUnitsPerDevPixel();
+    nscoord auPerCSSPixel = auPerDevPixel * metrics.mDevPixelsPerCSSPixel;
     nsContentView* view = FindViewForId(oldContentViews, scrollId);
     if (view) {
       // View already exists. Be sure to propagate scales for any values
@@ -392,8 +395,8 @@ BuildViewMap(ViewMap& oldContentViews, ViewMap& newContentViews,
       // The default scale is 1, so no need to propagate scale down.
       ViewConfig config;
       config.mScrollOffset = nsPoint(
-        NSIntPixelsToAppUnits(metrics.mViewportScrollOffset.x, auPerDevPixel) * aXScale,
-        NSIntPixelsToAppUnits(metrics.mViewportScrollOffset.y, auPerDevPixel) * aYScale);
+        NSIntPixelsToAppUnits(metrics.mScrollOffset.x, auPerCSSPixel) * aXScale,
+        NSIntPixelsToAppUnits(metrics.mScrollOffset.y, auPerCSSPixel) * aYScale);
       view = new nsContentView(aFrameLoader, scrollId, config);
       view->mParentScaleX = aAccConfigXScale;
       view->mParentScaleY = aAccConfigYScale;
@@ -728,7 +731,8 @@ void
 RenderFrameParent::NotifyDimensionsChanged(int width, int height)
 {
   if (mPanZoomController) {
-    mPanZoomController->UpdateViewportSize(width, height);
+    mPanZoomController->UpdateCompositionBounds(
+      nsIntRect(0, 0, width, height));
   }
 }
 
@@ -909,6 +913,14 @@ RenderFrameParent::ContentReceivedTouch(bool aPreventDefault)
   }
 }
 
+void
+RenderFrameParent::UpdateZoomConstraints(bool aAllowZoom, float aMinZoom, float aMaxZoom)
+{
+  if (mPanZoomController) {
+    mPanZoomController->UpdateZoomConstraints(aAllowZoom, aMinZoom, aMaxZoom);
+  }
+}
+
 }  // namespace layout
 }  // namespace mozilla
 

layout/ipc/RenderFrameParent.h

@@ -101,6 +101,8 @@ public:
 
   void ContentReceivedTouch(bool aPreventDefault);
 
+  void UpdateZoomConstraints(bool aAllowZoom, float aMinZoom, float aMaxZoom);
+
 protected:
   void ActorDestroy(ActorDestroyReason why) MOZ_OVERRIDE;
 

mobile/android/base/GeckoApp.java

@@ -156,6 +156,7 @@ abstract public class GeckoApp
     public static int mOrientation;
     private boolean mIsRestoringActivity;
     private String mCurrentResponse = "";
+    public static boolean sIsUsingCustomProfile = false;
 
     private PromptService mPromptService;
     private Favicons mFavicons;
@@ -1554,6 +1555,7 @@ abstract public class GeckoApp
                     if (profileName == null)
                         profileName = "default";
                 }
+                GeckoApp.sIsUsingCustomProfile = true;
             }
             if (profileName != null || profilePath != null) {
                 mProfile = GeckoProfile.get(this, profileName, profilePath);
@@ -2252,7 +2254,8 @@ abstract public class GeckoApp
                     ProfileMigrator profileMigrator = new ProfileMigrator(app);
 
                     // Do a migration run on the first start after an upgrade.
-                    if (!profileMigrator.hasMigrationRun()) {
+                    if (!GeckoApp.sIsUsingCustomProfile &&
+                        !profileMigrator.hasMigrationRun()) {
                         // Show the "Setting up Fennec" screen if this takes
                         // a while.
                         final SetupScreen setupScreen = new SetupScreen(app);
@@ -2296,7 +2299,7 @@ abstract public class GeckoApp
 
     private void checkMigrateSync() {
         final File profileDir = getProfile().getDir();
-        if (profileDir != null) {
+        if (!GeckoApp.sIsUsingCustomProfile && profileDir != null) {
             final GeckoApp app = GeckoApp.mAppContext;
             ProfileMigrator profileMigrator = new ProfileMigrator(app);
             if (!profileMigrator.hasSyncMigrated()) {

mobile/android/base/GeckoProfile.java

@@ -148,7 +148,8 @@ public final class GeckoProfile {
         try {
             // Check for old profiles that may need migration.
             ProfileMigrator profileMigrator = new ProfileMigrator(mContext);
-            if (!profileMigrator.isProfileMoved()) {
+            if (!GeckoApp.sIsUsingCustomProfile &&
+                !profileMigrator.isProfileMoved()) {
                 Log.i(LOGTAG, "New installation or update, checking for old profiles.");
                 profileMigrator.launchMoveProfile();
             }

netwerk/dns/nsDNSService2.cpp

@@ -687,6 +687,15 @@ nsDNSService::Resolve(const nsACString &hostname,
                       uint32_t          flags,
                       nsIDNSRecord    **result)
 {
+    NS_WARNING("Do not use synchronous DNS resolution! This API may be removed soon.");
+
+    // We will not allow this to be called on the main thread. This is transitional
+    // and a bit of a test for removing the synchronous API entirely.
+    if (NS_IsMainThread()) {
+        NS_ERROR("Synchronous DNS resolve failing - not allowed on the main thread!");
+        return NS_ERROR_FAILURE;
+    }
+
     // grab reference to global host resolver and IDN service.  beware
     // simultaneous shutdown!!
     nsRefPtr<nsHostResolver> res;

netwerk/dns/nsIDNSService.idl

@@ -59,9 +59,8 @@ interface nsIDNSService : nsISupports
                             in nsresult          aReason);
     
     /**
-     * called to synchronously resolve a hostname.  warning this method may
-     * block the calling thread for a long period of time.  it is extremely
-     * unwise to call this function on the UI thread of an application.
+     * Called to synchronously resolve a hostname.  This method will fail
+     * if called from the main thread.
      *
      * @param aHostName
      *        the hostname or IP-address-literal to resolve.

toolkit/library/Makefile.in

@@ -118,6 +118,10 @@ ifeq (gonk,$(MOZ_WIDGET_TOOLKIT))
 STATIC_LIBS += moznetd_s
 endif
 
+ifdef MOZ_B2G_CAMERA #{
+OS_LIBS += -lstagefright -lstagefright_omx
+endif #}
+
 ifdef MOZ_IPDL_TESTS
 STATIC_LIBS += ipdlunittest_s
 endif