Oilpan: Switch RefCountedGarbageCollected to GarbageCollectedFinalized for Node.

public/platform/WebPrivatePtr.h

 /*
  * Copyright (C) 2010 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 96 matching lines @@
             return;
         }
 
         if (!m_handle)
             m_handle = new WebCore::Persistent<T>();
 
         (*m_handle) = val;
     }
 
     void assign(T* ptr) { assign(RawPtr<T>(ptr)); }
+    template<typename U> void assign(const RawPtr<U>& val) { assign(RawPtr<T>(val)); }
 
     void assign(const PtrStorageImpl& other) { assign(other.get()); }
 
     T* get() const { return m_handle ? m_handle->get() : 0; }
 
     void release()
     {
         delete m_handle;
         m_handle = 0;
     }
@@ skipping 138 matching lines @@
     // Disable the copy constructor; classes that contain a WebPrivatePtr
     // should implement their copy constructor using assign().
     WebPrivatePtr(const WebPrivatePtr<T>&);
 
     void* m_storage;
 };
 
 } // namespace blink
 
 #endif