Implement new AnimationTimeline superclass

third_party/WebKit/Source/core/animation/DocumentTimeline.h

 /*
  * Copyright (C) 2013 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 22 matching lines @@
 
 #include "core/CoreExport.h"
 #include "core/animation/AnimationTimeline.h"
 #include "platform/bindings/ScriptWrappable.h"
 
 namespace blink {
 
 class Document;
 
 class CORE_EXPORT DocumentTimeline final : public AnimationTimeline {
-  DEFINE_WRAPPERTYPEINFO();
-
  public:
   static DocumentTimeline* Create(Document* document) {
     return new DocumentTimeline(document);
   }
 
  private:
   DocumentTimeline(Document* document) : AnimationTimeline(document, nullptr) {}
 
   friend class AnimationDocumentTimelineTest;
 };
 
 }  // namespace blink
 
 #endif