Delete most of rendering/compositing.

sky/engine/core/rendering/RenderLayerStackingNode.h

 /*
  * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Intel Corporation. All rights reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@web.de>
@@ skipping 35 matching lines @@
 #define SKY_ENGINE_CORE_RENDERING_RENDERLAYERSTACKINGNODE_H_
 
 #include "sky/engine/core/rendering/RenderLayerModelObject.h"
 #include "sky/engine/wtf/Noncopyable.h"
 #include "sky/engine/wtf/OwnPtr.h"
 #include "sky/engine/wtf/Vector.h"
 
 namespace blink {
 
 class RenderLayer;
-class RenderLayerCompositor;
 class RenderStyle;
 
 class RenderLayerStackingNode {
     WTF_MAKE_NONCOPYABLE(RenderLayerStackingNode);
 public:
     explicit RenderLayerStackingNode(RenderLayer*);
     ~RenderLayerStackingNode();
 
     int zIndex() const { return renderer()->style()->zIndex(); }
 
@@ skipping 68 matching lines @@
     void updateStackingParentForNormalFlowList(RenderLayerStackingNode* stackingParent);
     void setStackingParent(RenderLayerStackingNode* stackingParent) { m_stackingParent = stackingParent; }
 #endif
 
     bool shouldBeNormalFlowOnly() const;
 
     void updateNormalFlowList();
 
     bool isDirtyStackingContext() const { return m_zOrderListsDirty && isStackingContext(); }
 
-    RenderLayerCompositor* compositor() const;
     // FIXME: Investigate changing this to Renderbox.
     RenderLayerModelObject* renderer() const;
 
     RenderLayer* m_layer;
 
     // m_posZOrderList holds a sorted list of all the descendant nodes within
     // that have z-indices of 0 or greater (auto will count as 0).
     // m_negZOrderList holds descendants within our stacking context with
     // negative z-indices.
     OwnPtr<Vector<RenderLayerStackingNode*> > m_posZOrderList;
@@ skipping 55 matching lines @@
 
 private:
     RenderLayerStackingNode* m_stackingNode;
     bool m_previousMutationAllowedState;
 };
 #endif
 
 } // namespace blink
 
 #endif  // SKY_ENGINE_CORE_RENDERING_RENDERLAYERSTACKINGNODE_H_