Move Frame to the Oilpan heap.

public/web/WebFrame.h

 /*
  * Copyright (C) 2009 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 40 matching lines @@
 class Object;
 class Value;
 template <class T> class Handle;
 template <class T> class Local;
 }
 
 namespace blink {
 
 class Frame;
 class OpenedFrameTracker;
+class Visitor;
 class WebData;
 class WebDataSource;
 class WebDocument;
 class WebElement;
 class WebFormElement;
 class WebFrameClient;
 class WebInputElement;
 class WebLayer;
 class WebLocalFrame;
 class WebPerformance;
@@ skipping 605 matching lines @@
     // Only for testing purpose:
     // Returns true if selection.anchorNode has a marker on range from |from| with |length|.
     virtual bool selectionStartHasSpellingMarkerFor(int from, int length) const = 0;
 
     // Dumps the layer tree, used by the accelerated compositor, in
     // text form. This is used only by layout tests.
     virtual WebString layerTreeAsText(bool showDebugInfo = false) const = 0;
 
 #if BLINK_IMPLEMENTATION
     static WebFrame* fromFrame(Frame*);
+    static void trace(Visitor*, WebFrame*);
 #endif
 
 protected:
     explicit WebFrame();
     virtual ~WebFrame();
 
 private:
     friend class OpenedFrameTracker;
 
     WebFrame* m_parent;
     WebFrame* m_previousSibling;
     WebFrame* m_nextSibling;
     WebFrame* m_firstChild;
     WebFrame* m_lastChild;
 
     WebFrame* m_opener;
     WebPrivateOwnPtr<OpenedFrameTracker> m_openedFrameTracker;
 };
 
 #if BLINK_IMPLEMENTATION
 Frame* toCoreFrame(const WebFrame*);
 #endif
 
 } // namespace blink
 
 #endif