Remove WebCompositorSupport

sky/engine/public/platform/WebLayerTreeView.h

 /*
  * 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 19 matching lines @@
 #include "sky/engine/public/platform/WebCommon.h"
 #include "sky/engine/public/platform/WebFloatPoint.h"
 #include "sky/engine/public/platform/WebNonCopyable.h"
 #include "sky/engine/public/platform/WebPrivateOwnPtr.h"
 #include "sky/engine/public/platform/WebSize.h"
 
 class SkBitmap;
 
 namespace blink {
 
-class WebCompositeAndReadbackAsyncCallback;
 class WebGraphicsContext3D;
 class WebLayer;
 struct WebPoint;
 struct WebRect;
 struct WebRenderingStats;
 struct WebSelectionBound;
 
 class WebLayerTreeView {
 public:
     virtual ~WebLayerTreeView() { }
@@ skipping 75 matching lines @@
     // Toggles the debug borders on layers
     virtual void setShowDebugBorders(bool) { }
 
     // Toggles scroll bottleneck rects on the HUD layer
     virtual void setShowScrollBottleneckRects(bool) { }
 };
 
 } // namespace blink
 
 #endif  // SKY_ENGINE_PUBLIC_PLATFORM_WEBLAYERTREEVIEW_H_