Update WebKit idl files after chrome roll

third_party/WebCore/Modules/mediastream/MediaStream.idl

 /*
  * 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
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 12 matching lines @@
  */
 
 [
     Conditional=MEDIA_STREAM,
     EventTarget,
     Constructor,
     Constructor(in MediaStream stream),
     Constructor(in MediaStreamTrack[] tracks),
     ConstructorParameters=0,
     CallWith=ScriptExecutionContext,
+    V8SkipVTableValidation
 ] interface MediaStream {
     // DEPRECATED
     readonly attribute DOMString label;
 
     readonly attribute DOMString id;
 
     sequence<MediaStreamTrack> getAudioTracks();
     sequence<MediaStreamTrack> getVideoTracks();
 
     void addTrack(MediaStreamTrack track)
@@ skipping 12 matching lines @@
     void addEventListener(in DOMString type,
                           in EventListener listener,
                           in [Optional] boolean useCapture);
     void removeEventListener(in DOMString type,
                              in EventListener listener,
                              in [Optional] boolean useCapture);
     boolean dispatchEvent(in Event event)
         raises(EventException);
 };