Remove tons of OILPAN.

sky/engine/platform/Supplementable.h

 /*
  * Copyright (C) 2012 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 152 matching lines @@
     {
 #if ENABLE(ASSERT)
         m_threadId = currentThread();
 #endif
     }
 
     // We have a trace method in the SupplementableBase class to ensure we have
     // the vtable at the first word of the object. However we don't trace the
     // m_supplements here, but in the partially specialized template subclasses
     // since we only want to trace it for garbage collected classes.
-    virtual void trace(Visitor*) { }
 
     // FIXME: Oilpan: Make private and remove this ignore once PersistentHeapSupplementable is removed again.
 protected:
     typename SupplementableTraits<T, isGarbageCollected>::SupplementMap m_supplements;
 
 #if ENABLE(ASSERT)
 protected:
     SupplementableBase() : m_threadId(currentThread()) { }
 
 private:
     ThreadIdentifier m_threadId;
 #endif
 };
 
 
 template<typename T>
 class Supplement : public SupplementBase<T, false> { };
 
 // This class is used to make an off-heap class supplementable with off-heap
 // supplements (Supplement).
 template<typename T>
 class Supplementable : public SupplementableBase<T, false> {
 };
 
 } // namespace blink
 
 #endif // Supplementable_h