Bug 1024513 - JavaScript Error: "NS_ERROR_XPC_JAVASCRIPT_ERROR_WITH_DETAILS: [JavaScript Error: "targetElement is null" r=smaug

* * *
Bug 1024513 - followup to get ASAN builds r=me

b2g/chrome/content/shell.js

@@ -9,7 +9,6 @@ Cu.import('resource://gre/modules/SettingsChangeNotifier.jsm');
 Cu.import('resource://gre/modules/DataStoreChangeNotifier.jsm');
 Cu.import('resource://gre/modules/AlarmService.jsm');
 Cu.import('resource://gre/modules/ActivitiesService.jsm');
-Cu.import('resource://gre/modules/PermissionPromptHelper.jsm');
 Cu.import('resource://gre/modules/NotificationDB.jsm');
 Cu.import('resource://gre/modules/Payment.jsm');
 Cu.import("resource://gre/modules/AppsUtils.jsm");

dom/base/nsContentPermissionHelper.cpp

@@ -13,6 +13,7 @@
 #include "mozilla/dom/PContentPermission.h"
 #include "mozilla/dom/PermissionMessageUtils.h"
 #include "mozilla/dom/PContentPermissionRequestParent.h"
+#include "mozilla/dom/ScriptSettings.h"
 #include "mozilla/dom/TabParent.h"
 #include "mozilla/unused.h"
 #include "nsComponentManagerUtils.h"
@@ -358,3 +359,129 @@ nsContentPermissionRequestProxy::Allow(JS::HandleValue aChoices)
   mParent = nullptr;
   return NS_OK;
 }
+
+// RemotePermissionRequest
+
+// static
+uint32_t
+RemotePermissionRequest::ConvertArrayToPermissionRequest(
+                                nsIArray* aSrcArray,
+                                nsTArray<PermissionRequest>& aDesArray)
+{
+  uint32_t len = 0;
+  aSrcArray->GetLength(&len);
+  for (uint32_t i = 0; i < len; i++) {
+    nsCOMPtr<nsIContentPermissionType> cpt = do_QueryElementAt(aSrcArray, i);
+    nsAutoCString type;
+    nsAutoCString access;
+    cpt->GetType(type);
+    cpt->GetAccess(access);
+
+    nsCOMPtr<nsIArray> optionArray;
+    cpt->GetOptions(getter_AddRefs(optionArray));
+    uint32_t optionsLength = 0;
+    if (optionArray) {
+      optionArray->GetLength(&optionsLength);
+    }
+    nsTArray<nsString> options;
+    for (uint32_t j = 0; j < optionsLength; ++j) {
+      nsCOMPtr<nsISupportsString> isupportsString = do_QueryElementAt(optionArray, j);
+      if (isupportsString) {
+        nsString option;
+        isupportsString->GetData(option);
+        options.AppendElement(option);
+      }
+    }
+
+    aDesArray.AppendElement(PermissionRequest(type, access, options));
+  }
+  return len;
+}
+
+NS_IMPL_ISUPPORTS(RemotePermissionRequest, nsIContentPermissionRequest)
+
+RemotePermissionRequest::RemotePermissionRequest(
+  nsIContentPermissionRequest* aRequest,
+  nsPIDOMWindow* aWindow)
+  : mRequest(aRequest)
+  , mWindow(aWindow)
+{
+}
+
+// nsIContentPermissionRequest methods
+NS_IMETHODIMP
+RemotePermissionRequest::GetTypes(nsIArray** aTypes)
+{
+  NS_ASSERTION(mRequest, "We need a request");
+  return mRequest->GetTypes(aTypes);
+}
+
+NS_IMETHODIMP
+RemotePermissionRequest::GetPrincipal(nsIPrincipal **aRequestingPrincipal)
+{
+  NS_ENSURE_ARG_POINTER(aRequestingPrincipal);
+
+  return mRequest->GetPrincipal(aRequestingPrincipal);
+}
+
+NS_IMETHODIMP
+RemotePermissionRequest::GetWindow(nsIDOMWindow** aRequestingWindow)
+{
+  NS_ENSURE_ARG_POINTER(aRequestingWindow);
+
+  return mRequest->GetWindow(aRequestingWindow);
+}
+
+NS_IMETHODIMP
+RemotePermissionRequest::GetElement(nsIDOMElement** aRequestingElement)
+{
+  NS_ENSURE_ARG_POINTER(aRequestingElement);
+  *aRequestingElement = nullptr;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+RemotePermissionRequest::Cancel()
+{
+  NS_ASSERTION(mRequest, "We need a request");
+  return mRequest->Cancel();
+}
+
+NS_IMETHODIMP
+RemotePermissionRequest::Allow(JS::HandleValue aChoices)
+{
+  NS_ASSERTION(mRequest, "We need a request");
+  return mRequest->Allow(aChoices);
+}
+
+// PCOMContentPermissionRequestChild
+bool
+RemotePermissionRequest::Recv__delete__(const bool& aAllow,
+                                        const nsTArray<PermissionChoice>& aChoices)
+{
+  if (aAllow && mWindow->IsCurrentInnerWindow()) {
+    // Convert choices to a JS val if any.
+    // {"type1": "choice1", "type2": "choiceA"}
+    AutoJSAPI jsapi;
+    if (NS_WARN_IF(!jsapi.Init(mWindow))) {
+      return true; // This is not an IPC error.
+    }
+    JSContext* cx = jsapi.cx();
+    JS::Rooted<JSObject*> obj(cx);
+    obj = JS_NewObject(cx, nullptr, JS::NullPtr(), JS::NullPtr());
+    for (uint32_t i = 0; i < aChoices.Length(); ++i) {
+      const nsString& choice = aChoices[i].choice();
+      const nsCString& type = aChoices[i].type();
+      JS::Rooted<JSString*> jChoice(cx, JS_NewUCStringCopyN(cx, choice.get(), choice.Length()));
+      JS::Rooted<JS::Value> vChoice(cx, StringValue(jChoice));
+      if (!JS_SetProperty(cx, obj, type.get(), vChoice)) {
+        return false;
+      }
+    }
+    JS::RootedValue val(cx, JS::ObjectValue(*obj));
+    (void) Allow(val);
+  } else {
+    (void) Cancel();
+  }
+  return true;
+}

dom/base/nsContentPermissionHelper.h

@@ -8,7 +8,9 @@
 #include "nsIContentPermissionPrompt.h"
 #include "nsTArray.h"
 #include "nsIMutableArray.h"
+#include "PCOMContentPermissionRequestChild.h"
 
+class nsPIDOMWindow;
 class nsContentPermissionRequestProxy;
 
 // Forward declare IPC::Principal here which is defined in
@@ -83,4 +85,32 @@ class nsContentPermissionRequestProxy : public nsIContentPermissionRequest
   nsTArray<mozilla::dom::PermissionRequest> mPermissionRequests;
 };
 
+/**
+ * RemotePermissionRequest will send a prompt ipdl request to b2g process.
+ */
+class RemotePermissionRequest : public nsIContentPermissionRequest
+                              , public PCOMContentPermissionRequestChild
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSICONTENTPERMISSIONREQUEST
+
+  RemotePermissionRequest(nsIContentPermissionRequest* aRequest,
+                          nsPIDOMWindow* aWindow);
+
+  // It will be called when prompt dismissed.
+  virtual bool Recv__delete__(const bool &aAllow,
+                              const nsTArray<PermissionChoice>& aChoices) MOZ_OVERRIDE;
+  virtual void IPDLRelease() MOZ_OVERRIDE { Release(); }
+
+  static uint32_t ConvertArrayToPermissionRequest(
+                                nsIArray* aSrcArray,
+                                nsTArray<PermissionRequest>& aDesArray);
+private:
+  virtual ~RemotePermissionRequest() {}
+
+  nsCOMPtr<nsIContentPermissionRequest> mRequest;
+  nsCOMPtr<nsPIDOMWindow>               mWindow;
+};
+
 #endif // nsContentPermissionHelper_h

dom/base/nsDOMWindowUtils.cpp

@@ -70,6 +70,7 @@
 #include "mozilla/dom/indexedDB/IndexedDatabaseManager.h"
 #include "mozilla/dom/MutableFile.h"
 #include "mozilla/dom/MutableFileBinding.h"
+#include "mozilla/dom/PermissionMessageUtils.h"
 #include "mozilla/dom/quota/PersistenceType.h"
 #include "mozilla/dom/quota/QuotaManager.h"
 #include "nsDOMBlobBuilder.h"
@@ -88,6 +89,7 @@
 #include "GeckoProfiler.h"
 #include "mozilla/Preferences.h"
 #include "nsIContentIterator.h"
+#include "nsContentPermissionHelper.h"
 
 #ifdef XP_WIN
 #undef GetClassName
@@ -3677,6 +3679,49 @@ nsDOMWindowUtils::XpconnectArgument(nsIDOMWindowUtils* aThis)
   return NS_OK;
 }
 
+NS_IMETHODIMP
+nsDOMWindowUtils::AskPermission(nsIContentPermissionRequest* aRequest)
+{
+  nsCOMPtr<nsPIDOMWindow> window = do_QueryReferent(mWindow);
+  nsRefPtr<RemotePermissionRequest> req =
+    new RemotePermissionRequest(aRequest, window->GetCurrentInnerWindow());
+
+    // for content process
+  if (XRE_GetProcessType() == GeckoProcessType_Content) {
+    MOZ_ASSERT(NS_IsMainThread()); // IPC can only be execute on main thread.
+
+    dom::TabChild* child = dom::TabChild::GetFrom(window->GetDocShell());
+    NS_ENSURE_TRUE(child, NS_ERROR_FAILURE);
+
+    nsCOMPtr<nsIArray> typeArray;
+    nsresult rv = req->GetTypes(getter_AddRefs(typeArray));
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    nsTArray<PermissionRequest> permArray;
+    RemotePermissionRequest::ConvertArrayToPermissionRequest(typeArray, permArray);
+
+    nsCOMPtr<nsIPrincipal> principal;
+    rv = req->GetPrincipal(getter_AddRefs(principal));
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    req->AddRef();
+    child->SendPContentPermissionRequestConstructor(req,
+                                                    permArray,
+                                                    IPC::Principal(principal));
+
+    req->Sendprompt();
+    return NS_OK;
+  }
+
+  // for chrome process
+  nsCOMPtr<nsIContentPermissionPrompt> prompt =
+    do_GetService(NS_CONTENT_PERMISSION_PROMPT_CONTRACTID);
+  if (prompt) {
+    prompt->Prompt(req);
+  }
+  return NS_OK;
+}
+
 NS_INTERFACE_MAP_BEGIN(nsTranslationNodeList)
   NS_INTERFACE_MAP_ENTRY(nsISupports)
   NS_INTERFACE_MAP_ENTRY(nsITranslationNodeList)

dom/contacts/ContactManager.js

@@ -185,19 +185,6 @@ ContactManager.prototype = {
           Services.DOMRequest.fireError(req.cursor, msg.errorMsg);
         }
         break;
-      case "PermissionPromptHelper:AskPermission:OK":
-        if (DEBUG) debug("id: " + msg.requestID);
-        req = this.getRequest(msg.requestID);
-        if (!req) {
-          break;
-        }
-
-        if (msg.result == Ci.nsIPermissionManager.ALLOW_ACTION) {
-          req.allow();
-        } else {
-          req.cancel();
-        }
-        break;
       case "Contact:Changed":
         // Fire oncontactchange event
         if (DEBUG) debug("Contacts:ContactChanged: " + msg.contactID + ", " + msg.reason);
@@ -235,6 +222,7 @@ ContactManager.prototype = {
 
   askPermission: function (aAccess, aRequest, aAllowCallback, aCancelCallback) {
     if (DEBUG) debug("askPermission for contacts");
+
     let access;
     switch(aAccess) {
       case "create":
@@ -255,38 +243,42 @@ ContactManager.prototype = {
       }
 
     // Shortcut for ALLOW_ACTION so we avoid a parent roundtrip
+    let principal = this._window.document.nodePrincipal;
     let type = "contacts-" + access;
     let permValue =
-      Services.perms.testExactPermissionFromPrincipal(this._window.document.nodePrincipal, type);
+      Services.perms.testExactPermissionFromPrincipal(principal, type);
     if (permValue == Ci.nsIPermissionManager.ALLOW_ACTION) {
       aAllowCallback();
       return;
+    } else if (permValue == Ci.nsIPermissionManager.DENY_ACTION) {
+      aCancelCallback();
     }
 
-    let requestID = this.getRequestId({
-      request: aRequest,
-      allow: function() {
-        aAllowCallback();
-      }.bind(this),
-      cancel : function() {
-        if (aCancelCallback) {
-          aCancelCallback()
-        } else if (aRequest) {
-          Services.DOMRequest.fireError(aRequest, "Not Allowed");
-        }
-      }.bind(this)
-    });
-
-    let principal = this._window.document.nodePrincipal;
-    cpmm.sendAsyncMessage("PermissionPromptHelper:AskPermission", {
+    // Create an array with a single nsIContentPermissionType element.
+    let type = {
       type: "contacts",
       access: access,
-      requestID: requestID,
-      origin: principal.origin,
-      appID: principal.appId,
-      browserFlag: principal.isInBrowserElement,
-      windowID: this._window.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils).outerWindowID
-    });
+      options: null,
+      QueryInterface: XPCOMUtils.generateQI([Ci.nsIContentPermissionType])
+    };
+    let typeArray = Cc["@mozilla.org/array;1"].createInstance(Ci.nsIMutableArray);
+    typeArray.appendElement(type, false);
+
+    // create a nsIContentPermissionRequest
+    let request = {
+      types: typeArray,
+      principal: principal,
+      QueryInterface: XPCOMUtils.generateQI([Ci.nsIContentPermissionRequest]),
+      allow: aAllowCallback,
+      cancel: aCancelCallback,
+      window: this._window
+    };
+
+    // Using askPermission from nsIDOMWindowUtils that takes care of the
+    // remoting if needed.
+    let windowUtils = this._window.QueryInterface(Ci.nsIInterfaceRequestor)
+                          .getInterface(Ci.nsIDOMWindowUtils);
+    windowUtils.askPermission(request);
   },
 
   save: function save(aContact) {
@@ -464,7 +456,6 @@ ContactManager.prototype = {
                               "Contact:Save:Return:OK", "Contact:Save:Return:KO",
                               "Contact:Remove:Return:OK", "Contact:Remove:Return:KO",
                               "Contact:Changed",
-                              "PermissionPromptHelper:AskPermission:OK",
                               "Contacts:GetAll:Next", "Contacts:GetAll:Return:KO",
                               "Contacts:Count",
                               "Contacts:Revision", "Contacts:GetRevision:Return:KO",]);

dom/contacts/tests/shared.js

@@ -3,7 +3,6 @@
 // Fix the environment to run Contacts tests
 if (SpecialPowers.isMainProcess()) {
   SpecialPowers.Cu.import("resource://gre/modules/ContactService.jsm");
-  SpecialPowers.Cu.import("resource://gre/modules/PermissionPromptHelper.jsm");
 }
 
 SpecialPowers.addPermission("contacts-write", true, document);

dom/interfaces/base/nsIDOMWindowUtils.idl

@@ -47,8 +47,9 @@ interface nsIDOMEventTarget;
 interface nsIRunnable;
 interface nsICompositionStringSynthesizer;
 interface nsITranslationNodeList;
+interface nsIContentPermissionRequest;
 
-[scriptable, uuid(46e3f206-9a8f-4d66-8248-7ec6a37de45a)]
+[scriptable, uuid(ca202fa7-7b8f-4814-acc3-a8545f67320b)]
 interface nsIDOMWindowUtils : nsISupports {
 
   /**
@@ -1663,6 +1664,12 @@ interface nsIDOMWindowUtils : nsISupports {
      * purpose of the test for bug 503926.
      */
     void xpconnectArgument(in nsIDOMWindowUtils aThis);
+
+    /**
+     * Helper for JS components that need to send permission requests with
+     * e10s support properly.
+     */
+     void askPermission(in nsIContentPermissionRequest aRequest);
 };
 
 [scriptable, uuid(c694e359-7227-4392-a138-33c0cc1f15a6)]

dom/ipc/PCOMContentPermissionRequestChild.h

@@ -10,6 +10,7 @@
 // XXXbz Doing this in a header is a gigantic footgun.  See
 // https://bugzilla.mozilla.org/show_bug.cgi?id=932421#c3 for why.
 #undef CreateEvent
+#undef LoadImage
 
 /*
   PContentPermissionRequestChild implementations also are

dom/media/MediaPermissionGonk.cpp

@@ -35,38 +35,6 @@ namespace mozilla {
 
 static MediaPermissionManager *gMediaPermMgr = nullptr;
 
-static uint32_t
-ConvertArrayToPermissionRequest(nsIArray* aSrcArray,
-                                nsTArray<PermissionRequest>& aDesArray)
-{
-  uint32_t len = 0;
-  aSrcArray->GetLength(&len);
-  for (uint32_t i = 0; i < len; i++) {
-    nsCOMPtr<nsIContentPermissionType> cpt = do_QueryElementAt(aSrcArray, i);
-    nsAutoCString type;
-    nsAutoCString access;
-    cpt->GetType(type);
-    cpt->GetAccess(access);
-
-    nsCOMPtr<nsIArray> optionArray;
-    cpt->GetOptions(getter_AddRefs(optionArray));
-    uint32_t optionsLength = 0;
-    optionArray->GetLength(&optionsLength);
-    nsTArray<nsString> options;
-    for (uint32_t j = 0; j < optionsLength; ++j) {
-      nsCOMPtr<nsISupportsString> isupportsString = do_QueryElementAt(optionArray, j);
-      if (isupportsString) {
-        nsString option;
-        isupportsString->GetData(option);
-        options.AppendElement(option);
-      }
-    }
-
-    aDesArray.AppendElement(PermissionRequest(type, access, options));
-  }
-  return len;
-}
-
 static void
 CreateDeviceNameList(nsTArray<nsCOMPtr<nsIMediaDevice> > &aDevices,
                      nsTArray<nsString> &aDeviceNameList)
@@ -449,7 +417,7 @@ MediaDeviceSuccessCallback::DoPrompt(nsRefPtr<MediaPermissionRequest> &req)
     NS_ENSURE_SUCCESS(rv, rv);
 
     nsTArray<PermissionRequest> permArray;
-    ConvertArrayToPermissionRequest(typeArray, permArray);
+    RemotePermissionRequest::ConvertArrayToPermissionRequest(typeArray, permArray);
 
     nsCOMPtr<nsIPrincipal> principal;
     rv = req->GetPrincipal(getter_AddRefs(principal));

dom/permission/PermissionPromptHelper.jsm

@@ -1,146 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-/* PermissionPromptHelper checks the permissionDB for a given permission
- * name and performs prompting if needed.
- * Usage: send PermissionPromptHelper:AskPermission via the FrameMessageManager with:
- * |origin|, |appID|, |browserFlag| -> used for getting the principal and
- * |type| and |access| to call testExactPermissionFromPrincipal.
- * Note that |access| isn't currently used.
- * Other arugments are:
- * requestID: ID that gets returned with the result message.
- *
- * Once the permission is checked, it returns with the message
- * "PermissionPromptHelper:AskPermission:OK"
- * The result contains the |result| e.g.Ci.nsIPermissionManager.ALLOW_ACTION
- * and a requestID that
- */
-
-"use strict";
-
-let DEBUG = 0;
-let debug;
-if (DEBUG)
-  debug = function (s) { dump("-*- Permission Prompt Helper component: " + s + "\n"); }
-else
-  debug = function (s) {}
-
-const Cu = Components.utils;
-const Cc = Components.classes;
-const Ci = Components.interfaces;
-
-this.EXPORTED_SYMBOLS = ["PermissionPromptHelper"];
-
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-Cu.import("resource://gre/modules/Services.jsm");
-
-XPCOMUtils.defineLazyServiceGetter(this, "ppmm",
-                                   "@mozilla.org/parentprocessmessagemanager;1",
-                                   "nsIMessageListenerManager");
-
-XPCOMUtils.defineLazyServiceGetter(this, "permissionPromptService",
-                                   "@mozilla.org/permission-prompt-service;1",
-                                   "nsIPermissionPromptService");
-
-let appsService = Cc["@mozilla.org/AppsService;1"].getService(Ci.nsIAppsService);
-
-this.PermissionPromptHelper = {
-  init: function init() {
-    debug("Init");
-    ppmm.addMessageListener("PermissionPromptHelper:AskPermission", this);
-    Services.obs.addObserver(this, "profile-before-change", false);
-  },
-
-  askPermission: function askPermission(aMessage, aCallbacks) {
-    let msg = aMessage.json;
-
-    let access = msg.type;
-    if (msg.access) {
-      access = access + "-" + msg.access;
-    }
-
-    let uri = Services.io.newURI(msg.origin, null, null);
-    let principal =
-      Services.scriptSecurityManager.getAppCodebasePrincipal(uri, msg.appID, msg.browserFlag);
-
-    let permValue =
-      Services.perms.testExactPermissionFromPrincipal(principal, access);
-
-    if (permValue == Ci.nsIPermissionManager.DENY_ACTION ||
-        permValue == Ci.nsIPermissionManager.UNKNOWN_ACTION) {
-      aCallbacks.cancel();
-      return;
-    }
-
-    if (permValue == Ci.nsIPermissionManager.PROMPT_ACTION) {
-
-      // create the options from permission request.
-      let options = Cc["@mozilla.org/array;1"].createInstance(Ci.nsIMutableArray);
-      if (msg.options) {
-        for (let option of options) {
-          options.appendElement(option);
-        }
-      }
-
-      // create an array with a nsIContentPermissionType element
-      let type = {
-        type: msg.type,
-        access: msg.access ? msg.access : "unused",
-        options: options,
-        QueryInterface: XPCOMUtils.generateQI([Ci.nsIContentPermissionType])
-      };
-      let typeArray = Cc["@mozilla.org/array;1"].createInstance(Ci.nsIMutableArray);
-      typeArray.appendElement(type, false);
-
-      // create a nsIContentPermissionRequest
-      let request = {
-        types: typeArray,
-        principal: principal,
-        QueryInterface: XPCOMUtils.generateQI([Ci.nsIContentPermissionRequest]),
-        allow: aCallbacks.allow,
-        cancel: aCallbacks.cancel,
-        window: Services.wm.getOuterWindowWithId(msg.windowID)
-      };
-
-      permissionPromptService.getPermission(request);
-      return;
-    }
-
-    if (permValue == Ci.nsIPermissionManager.ALLOW_ACTION) {
-      aCallbacks.allow();
-      return;
-    }
-  },
-
-  observe: function observe(aSubject, aTopic, aData) {
-    ppmm.removeMessageListener("PermissionPromptHelper:AskPermission", this);
-    Services.obs.removeObserver(this, "profile-before-change");
-    ppmm = null;
-  },
-
-  receiveMessage: function receiveMessage(aMessage) {
-    debug("PermissionPromptHelper::receiveMessage " + aMessage.name);
-    let mm = aMessage.target;
-    let msg = aMessage.data;
-
-    let result;
-    if (aMessage.name == "PermissionPromptHelper:AskPermission") {
-      this.askPermission(aMessage, {
-        cancel: function() {
-          mm.sendAsyncMessage("PermissionPromptHelper:AskPermission:OK",
-                              { result: Ci.nsIPermissionManager.DENY_ACTION,
-                                requestID: msg.requestID });
-        },
-        allow: function(aChoice) {
-          mm.sendAsyncMessage("PermissionPromptHelper:AskPermission:OK",
-                              { result: Ci.nsIPermissionManager.ALLOW_ACTION,
-                                choice: aChoice,
-                                requestID: msg.requestID });
-        }
-      });
-    }
-  }
-}
-
-PermissionPromptHelper.init();

dom/permission/moz.build

@@ -14,6 +14,5 @@ EXTRA_COMPONENTS += [
 ]
 
 EXTRA_JS_MODULES += [
-    'PermissionPromptHelper.jsm',
     'PermissionSettings.jsm',
 ]

mobile/android/chrome/content/WebappRT.js

@@ -9,7 +9,6 @@ Cu.import("resource://gre/modules/Services.jsm");
 Cu.import("resource://gre/modules/FileUtils.jsm");
 Cu.import("resource://gre/modules/NetUtil.jsm");
 Cu.import("resource://gre/modules/PermissionsInstaller.jsm");
-Cu.import("resource://gre/modules/PermissionPromptHelper.jsm");
 Cu.import("resource://gre/modules/ContactService.jsm");
 Cu.import("resource://gre/modules/AppsUtils.jsm");