Invert the owning relationship between WebFrame and Frame.

Source/core/inspector/InspectorOverlay.cpp

 /*
  * 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
@@ skipping 663 matching lines @@
     update();
 }
 
 bool InspectorOverlay::getBoxModel(Node* node, Vector<FloatQuad>* quads)
 {
     return buildNodeQuads(node, *quads);
 }
 
 void InspectorOverlay::freePage()
 {
-    m_overlayPage.clear();
+    if (m_overlayPage) {
+        // FIXME: This logic is duplicated in SVGImage and WebViewImpl. Perhaps it can be combined
+        // into Page's destructor.
+        m_overlayPage->mainFrame()->loader().frameDetached();
+        m_overlayPage.clear();
+    }
     m_overlayChromeClient.clear();
     m_timer.stop();
 }
 
 void InspectorOverlay::startedRecordingProfile()
 {
     if (!m_activeProfilerCount++)
         freePage();
 }
 
 } // namespace WebCore