Remove CSSCompositing

sky/engine/public/platform/WebLayer.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 66 matching lines @@
 
     virtual void setMaskLayer(WebLayer*) = 0;
     virtual void setReplicaLayer(WebLayer*) = 0;
 
     virtual void setOpacity(float) = 0;
     virtual float opacity() const = 0;
 
     virtual void setBlendMode(WebBlendMode) = 0;
     virtual WebBlendMode blendMode() const = 0;
 
-    virtual void setIsRootForIsolatedGroup(bool) = 0;
-    virtual bool isRootForIsolatedGroup() = 0;
-
     virtual void setOpaque(bool) = 0;
     virtual bool opaque() const = 0;
 
     virtual void setPosition(const WebFloatPoint&) = 0;
     virtual WebFloatPoint position() const = 0;
 
     virtual void setTransform(const SkMatrix44&) = 0;
     virtual SkMatrix44 transform() const = 0;
 
     virtual void setTransformOrigin(const WebFloatPoint3D&) { }
@@ skipping 80 matching lines @@
 
     // True if the layer is not part of a tree attached to a WebLayerTreeView.
     virtual bool isOrphan() const = 0;
 
     virtual void setWebLayerClient(WebLayerClient*) = 0;
 };
 
 } // namespace blink
 
 #endif // WebLayer_h