Seperate DOMVisualViewport from Blink's VisualViewport class

third_party/WebKit/Source/core/frame/VisualViewport.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 47 matching lines @@
 class LocalFrame;
 
 // Represents the visual viewport the user is currently seeing the page through. This
 // class corresponds to the InnerViewport on the compositor. It is a ScrollableArea; it's
 // offset is set through the GraphicsLayer <-> CC sync mechanisms. Its contents is the page's
 // main FrameView, which corresponds to the outer viewport. The inner viewport is always contained
 // in the outer viewport and can pan within it.
 class CORE_EXPORT VisualViewport final
     : public GarbageCollectedFinalized<VisualViewport>
     , public GraphicsLayerClient
-    , public ScriptWrappable
     , public ScrollableArea {
     USING_GARBAGE_COLLECTED_MIXIN(VisualViewport);
-    DEFINE_WRAPPERTYPEINFO();
 public:
     static VisualViewport* create(FrameHost& host)
     {
         return new VisualViewport(host);
     }
     ~VisualViewport() override;
 
     DECLARE_VIRTUAL_TRACE();
 
     void attachToLayerTree(GraphicsLayer*);
@@ skipping 181 matching lines @@
     float m_scale;
     IntSize m_size;
     float m_topControlsAdjustment;
     float m_maxPageScale;
     bool m_trackPinchZoomStatsForPage;
 };
 
 } // namespace blink
 
 #endif // VisualViewport_h