Add onanimationXXX attributes on HTML elements.

Source/core/page/Window.idl

 /*
  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 227 matching lines @@
     // attribute EventHandler onafterprint;
     // attribute EventHandler onbeforeprint;
     // attribute EventHandler onreadystatechange;
     // attribute EventHandler onredo;
     // attribute EventHandler onshow;
     // attribute EventHandler onundo;
 
     // Webkit extensions
     attribute EventHandler onreset;
     attribute EventHandler onsearch;
+    [EnabledAtRuntime=CSSAnimationUnprefixed] attribute EventHandler onanimationend;
+    [EnabledAtRuntime=CSSAnimationUnprefixed] attribute EventHandler onanimationiteration;
+    [EnabledAtRuntime=CSSAnimationUnprefixed] attribute EventHandler onanimationstart;
     attribute EventHandler onwebkitanimationend;
     attribute EventHandler onwebkitanimationiteration;
     attribute EventHandler onwebkitanimationstart;
     attribute EventHandler onwebkittransitionend;
     attribute EventHandler ontransitionend;
     [Conditional=ORIENTATION_EVENTS] attribute EventHandler onorientationchange;
     [EnabledAtRuntime=Touch] attribute EventHandler ontouchstart;
     [EnabledAtRuntime=Touch] attribute EventHandler ontouchmove;
     [EnabledAtRuntime=Touch] attribute EventHandler ontouchend;
     [EnabledAtRuntime=Touch] attribute EventHandler ontouchcancel;
@@ skipping 45 matching lines @@
     // window.toString() requires special handling in V8
     [DoNotCheckSignature, DoNotCheckSecurity, Custom, NotEnumerable] DOMString toString();
 
     [ImplementedAs=anonymousIndexedGetter, NotEnumerable] getter Window(unsigned long index);
     [Custom, NotEnumerable] getter Window (DOMString name);
 };
 
 Window implements ImageBitmapFactories;
 Window implements WindowTimers;
 Window implements WindowBase64;