Bug 1022818 - Part 1: Update webidl interfaces. r=bz

- Extended the Element and Window webidl interfaces as described in the
  CSSOM-View smooth-scrolling specification.
- The Element.scrollTop and Element.scrollLeft changes have been omitted
  until either WebIDL is extended to allow properties to have union datatypes
  that contain dictionaries or the CSSOM-View smooth-scroll specification
  is upddated.  This will not prevent the other interface changes from being
  useful.
- Implemented wrapper functions for the nsGlobalWindow to connect to the new
  WebIDL bindings.  The ScrollOptions parameters are ignored in this patch,
  and used in Part 3 of this patch series.

content/base/public/Element.h

@@ -35,6 +35,7 @@
 #include "nsAttrValue.h"
 #include "mozilla/EventForwards.h"
 #include "mozilla/dom/BindingDeclarations.h"
+#include "mozilla/dom/WindowBinding.h"
 #include "Units.h"
 
 class nsIDOMEventListener;
@@ -720,11 +721,8 @@ public:
   already_AddRefed<ShadowRoot> CreateShadowRoot(ErrorResult& aError);
   already_AddRefed<DestinationInsertionPointList> GetDestinationInsertionPoints();
 
-  void ScrollIntoView()
+  void ScrollIntoView();
-  {
+  void ScrollIntoView(bool aTop, const ScrollOptions &aOptions);
-    ScrollIntoView(true);
-  }
-  void ScrollIntoView(bool aTop);
   int32_t ScrollTop()
   {
     nsIScrollableFrame* sf = GetScrollFrame();

content/base/src/Element.cpp

@@ -586,7 +586,13 @@ Element::GetScrollFrame(nsIFrame **aStyledFrame, bool aFlushLayout)
 }
 
 void
-Element::ScrollIntoView(bool aTop)
+Element::ScrollIntoView()
+{
+  ScrollIntoView(true, ScrollOptions());
+}
+
+void
+Element::ScrollIntoView(bool aTop, const ScrollOptions &aOptions)
 {
   nsIDocument *document = GetCurrentDoc();
   if (!document) {

content/html/content/src/nsGenericHTMLElement.h

@@ -469,7 +469,7 @@ public:
     if (!_argc) {
       top = true;
     }
-    mozilla::dom::Element::ScrollIntoView(top);
+    mozilla::dom::Element::ScrollIntoView(top, mozilla::dom::ScrollOptions());
     return NS_OK;
   }
   NS_IMETHOD GetOffsetParent(nsIDOMElement** aOffsetParent) MOZ_FINAL {

dom/base/nsGlobalWindow.cpp

@@ -7221,6 +7221,20 @@ nsGlobalWindow::GetTopWindowRoot()
   return window.forget();
 }
 
+void
+nsGlobalWindow::Scroll(int32_t aXScroll, int32_t aYScroll,
+                       const ScrollOptions& aOptions)
+{
+  ScrollTo(CSSIntPoint(aXScroll, aYScroll));
+}
+
+void
+nsGlobalWindow::ScrollTo(int32_t aXScroll, int32_t aYScroll,
+                         const ScrollOptions& aOptions)
+{
+  ScrollTo(CSSIntPoint(aXScroll, aYScroll));
+}
+
 NS_IMETHODIMP
 nsGlobalWindow::Scroll(int32_t aXScroll, int32_t aYScroll)
 {
@@ -7277,6 +7291,27 @@ nsGlobalWindow::MozRequestOverfill(OverfillCallback& aCallback,
   aError.Throw(NS_ERROR_NOT_AVAILABLE);
 }
 
+void
+nsGlobalWindow::ScrollBy(int32_t aXScrollDif, int32_t aYScrollDif,
+                         const ScrollOptions& aOptions)
+{
+  ScrollBy(aXScrollDif, aYScrollDif);
+}
+
+void
+nsGlobalWindow::ScrollByLines(int32_t numLines,
+                              const ScrollOptions& aOptions)
+{
+  ScrollByLines(numLines);
+}
+
+void
+nsGlobalWindow::ScrollByPages(int32_t numPages,
+                              const ScrollOptions& aOptions)
+{
+  ScrollByPages(numPages);
+}
+
 NS_IMETHODIMP
 nsGlobalWindow::ScrollBy(int32_t aXScrollDif, int32_t aYScrollDif)
 {

dom/base/nsGlobalWindow.h

@@ -49,6 +49,7 @@
 #include "nsIDocument.h"
 #include "nsIDOMTouchEvent.h"
 #include "mozilla/dom/EventTarget.h"
+#include "mozilla/dom/WindowBinding.h"
 #include "Units.h"
 #include "nsComponentManagerUtils.h"
 
@@ -934,6 +935,16 @@ public:
                 mozilla::ErrorResult& aError);
   void ResizeBy(int32_t aWidthDif, int32_t aHeightDif,
                 mozilla::ErrorResult& aError);
+  void Scroll(int32_t aXScroll, int32_t aYScroll,
+              const mozilla::dom::ScrollOptions& aOptions);
+  void ScrollTo(int32_t aXScroll, int32_t aYScroll,
+                const mozilla::dom::ScrollOptions& aOptions);
+  void ScrollBy(int32_t aXScrollDif, int32_t aYScrollDif,
+                const mozilla::dom::ScrollOptions& aOptions);
+  void ScrollByLines(int32_t numLines,
+                     const mozilla::dom::ScrollOptions& aOptions);
+  void ScrollByPages(int32_t numPages,
+                     const mozilla::dom::ScrollOptions& aOptions);
   int32_t GetInnerWidth(mozilla::ErrorResult& aError);
   void SetInnerWidth(int32_t aInnerWidth, mozilla::ErrorResult& aError);
   int32_t GetInnerHeight(mozilla::ErrorResult& aError);

dom/webidl/Element.webidl

@@ -156,7 +156,7 @@ partial interface Element {
 
   // scrolling
   void scrollIntoView();
-  void scrollIntoView(boolean top);
+  void scrollIntoView(boolean top, optional ScrollOptions options);
   // None of the CSSOM attributes are [Pure], because they flush
            attribute long scrollTop;   // scroll on setting
            attribute long scrollLeft;  // scroll on setting

dom/webidl/Window.webidl

@@ -179,16 +179,13 @@ partial interface Window {
   //[Throws] readonly attribute double pageXOffset;
   //[Throws] readonly attribute double scrollY;
   //[Throws] readonly attribute double pageYOffset;
-  //void scroll(double x, double y, optional ScrollOptions options);
+  void scroll(double x, double y, optional ScrollOptions options);
-  //void scrollTo(double x, double y, optional ScrollOptions options);
+  void scrollTo(double x, double y, optional ScrollOptions options);
-  //void scrollBy(double x, double y, optional ScrollOptions options);
+  void scrollBy(double x, double y, optional ScrollOptions options);
   [Replaceable, Throws] readonly attribute long scrollX;
   [Throws] readonly attribute long pageXOffset;
   [Replaceable, Throws] readonly attribute long scrollY;
   [Throws] readonly attribute long pageYOffset;
-  void scroll(long x, long y);
-  void scrollTo(long x, long y);
-  void scrollBy(long x, long y);
 
   // client
   //[Throws] readonly attribute double screenX;
@@ -271,12 +268,12 @@ partial interface Window {
   /**
    * Method for scrolling this window by a number of lines.
    */
-  void                      scrollByLines(long numLines);
+  void                      scrollByLines(long numLines, optional ScrollOptions options);
 
   /**
    * Method for scrolling this window by a number of pages.
    */
-  void                      scrollByPages(long numPages);
+  void                      scrollByPages(long numPages, optional ScrollOptions options);
 
   /**
    * Method for sizing this window to the content in the window.