Remove Webkit prefix for RequestAnimationFrame.

lib/html/dartium/html_dartium.dart

Index: lib/html/dartium/html_dartium.dart
===================================================================
--- lib/html/dartium/html_dartium.dart	(revision 12738)
+++ lib/html/dartium/html_dartium.dart	(working copy)
@@ -40806,10 +40806,10 @@
   void stop();
 
   /** @domName DOMWindow.webkitCancelAnimationFrame */
-  void webkitCancelAnimationFrame(int id);
+  void cancelAnimationFrame(int id);
 
   /** @domName DOMWindow.webkitCancelRequestAnimationFrame */
-  void webkitCancelRequestAnimationFrame(int id);
+  void cancelRequestAnimationFrame(int id);
 
   /** @domName DOMWindow.webkitConvertPointFromNodeToPage */
   Point webkitConvertPointFromNodeToPage(Node node, Point p);
@@ -40821,7 +40821,7 @@
   void webkitPostMessage(/*SerializedScriptValue*/ message, String targetOrigin, [List transferList]);
 
   /** @domName DOMWindow.webkitRequestAnimationFrame */
-  int webkitRequestAnimationFrame(RequestAnimationFrameCallback callback);
+  int requestAnimationFrame(RequestAnimationFrameCallback callback);
 
   /** @domName DOMWindow.webkitRequestFileSystem */
   void webkitRequestFileSystem(int type, int size, FileSystemCallback successCallback, [ErrorCallback errorCallback]);
@@ -41345,9 +41345,9 @@
 
   void stop() native "DOMWindow_stop_Callback";
 
-  void webkitCancelAnimationFrame(int id) native "DOMWindow_webkitCancelAnimationFrame_Callback";
+  void cancelAnimationFrame(int id) native "DOMWindow_webkitCancelAnimationFrame_Callback";
 
-  void webkitCancelRequestAnimationFrame(int id) native "DOMWindow_webkitCancelRequestAnimationFrame_Callback";
+  void cancelRequestAnimationFrame(int id) native "DOMWindow_webkitCancelRequestAnimationFrame_Callback";
 
   Point webkitConvertPointFromNodeToPage(Node node, Point p) native "DOMWindow_webkitConvertPointFromNodeToPage_Callback";
 
@@ -41355,7 +41355,7 @@
 
   void webkitPostMessage(message, String targetOrigin, [List transferList]) native "DOMWindow_webkitPostMessage_Callback";
 
-  int webkitRequestAnimationFrame(RequestAnimationFrameCallback callback) native "DOMWindow_webkitRequestAnimationFrame_Callback";
+  int requestAnimationFrame(RequestAnimationFrameCallback callback) native "DOMWindow_webkitRequestAnimationFrame_Callback";
 
   void webkitRequestFileSystem(int type, int size, FileSystemCallback successCallback, [ErrorCallback errorCallback]) native "DOMWindow_webkitRequestFileSystem_Callback";