Remove tons of OILPAN.

sky/engine/core/dom/ClientRectList.h

 /*
  * Copyright (C) 2009 Apple 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 35 matching lines @@
     {
         return adoptRef(new ClientRectList);
     }
     static PassRefPtr<ClientRectList> create(const Vector<FloatQuad>& quads)
     {
         return adoptRef(new ClientRectList(quads));
     }
     unsigned length() const;
     ClientRect* item(unsigned index);
 
-    void trace(Visitor*);
-
 private:
     ClientRectList();
     explicit ClientRectList(const Vector<FloatQuad>&);
 
     Vector<RefPtr<ClientRect> > m_list;
 };
 
 } // namespace blink
 
 #endif // ClientRectList_h