Move Frame to the Oilpan heap.

Source/core/frame/DOMWindowProperty.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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 24 matching lines @@
 class DOMWindowProperty : public WillBeGarbageCollectedMixin {
     DECLARE_EMPTY_VIRTUAL_DESTRUCTOR_WILL_BE_REMOVED(DOMWindowProperty);
 public:
     explicit DOMWindowProperty(LocalFrame*);
 
     virtual void willDestroyGlobalObjectInFrame();
     virtual void willDetachGlobalObjectFromFrame();
 
     LocalFrame* frame() const { return m_frame; }
 
-    virtual void trace(Visitor*) { }
+    virtual void trace(Visitor*);
 
 protected:
-    LocalFrame* m_frame;
+    RawPtrWillBeWeakMember<LocalFrame> m_frame;
 };
 
-}
+} // namespace blink
 
 #endif