Getting html_dart2js and html_dartium a bit more in sync.

tools/dom/templates/html/impl/impl_Window.darttemplate

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of $LIBRARYNAME;
 
 $if DART2JS
 $(ANNOTATIONS)class $CLASSNAME$EXTENDS$IMPLEMENTS native "Window,DOMWindow" {
 $else
 $(ANNOTATIONS)class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
@@ skipping 134 matching lines @@
    *
    * Note: The supplied [callback] needs to call [requestAnimationFrame] again
    * for the animation to continue.
    */
   @DomName('DOMWindow.requestAnimationFrame')
   int requestAnimationFrame(RequestAnimationFrameCallback callback) {
     _ensureRequestAnimationFrame();
     return _requestAnimationFrame(callback);
   }
 
-  void cancelAnimationFrame(id) {
+  void cancelAnimationFrame(int id) {
     _ensureRequestAnimationFrame();
     _cancelAnimationFrame(id);
   }
 
   @JSName('requestAnimationFrame')
   int _requestAnimationFrame(RequestAnimationFrameCallback callback) native;
 
   @JSName('cancelAnimationFrame')
   void _cancelAnimationFrame(int id) native;
 
@@ skipping 32 matching lines @@
   @SupportedBrowser(SupportedBrowser.CHROME, '23.0')
   @SupportedBrowser(SupportedBrowser.FIREFOX, '15.0')
   @SupportedBrowser(SupportedBrowser.IE, '10.0')
   @Experimental
   IdbFactory get indexedDB =>
       JS('IdbFactory|Null',  // If not supported, returns `null`.
          '#.indexedDB || #.webkitIndexedDB || #.mozIndexedDB',
          this, this, this);
 
   @DomName('Window.console')
-  Console get console => Console.safeConsole;
+  Console get console => Console._safeConsole;
 
   /// Checks if _setImmediate is supported.
   static bool get _supportsSetImmediate =>
       JS('bool', '!!(window.setImmediate)');
 
   // Set immediate implementation for IE
   void _setImmediate(void callback()) {
     JS('void', '#.setImmediate(#)', this, convertDartClosureToJS(callback, 0));
   }
 $else
@@ skipping 104 matching lines @@
       return wrapped.returnValue;
     });
 
     return controller.stream;
   }
 
   String getEventType(EventTarget target) {
     return _eventType;
   }
 }