Prepare for remote->local frame swap

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 649 matching lines @@
 #if ENABLE(OILPAN)
     static void traceFrames(Visitor*, WebFrame*);
     void clearWeakFrames(Visitor*);
 #endif
 #endif
 
 protected:
     WebFrame();
     virtual ~WebFrame();
 
+    // Sets the parent WITHOUT fulling adding it to the frame tree.
+    // Used to lie to a local frame that is replacing a remote frame,
+    // so it can properly start a navigation but wait to swap until
+    // commit-time.
+    void setParent(WebFrame*);
+
 private:
     friend class OpenedFrameTracker;
 
 #if BLINK_IMPLEMENTATION
 #if ENABLE(OILPAN)
     static void traceFrame(Visitor*, WebFrame*);
     static bool isFrameAlive(Visitor*, const WebFrame*);
 #endif
 #endif
 
     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