Focusing iframe window should trigger blur event for oldframe's focused element

Source/core/page/FocusController.h

 /*
  * Copyright (C) 2006, 2007 Apple 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 49 matching lines @@
     explicit FocusNavigationScope(TreeScope*);
     TreeScope* m_rootTreeScope;
 };
 
 class FocusController {
     WTF_MAKE_NONCOPYABLE(FocusController); WTF_MAKE_FAST_ALLOCATED;
 public:
     static PassOwnPtr<FocusController> create(Page*);
 
     void setFocusedFrame(PassRefPtr<Frame>);
+    void focusDocumentView(PassRefPtr<Frame>);
     Frame* focusedFrame() const { return m_focusedFrame.get(); }
     Frame* focusedOrMainFrame() const;
 
     bool setInitialFocus(FocusType);
     bool advanceFocus(FocusType type) { return advanceFocus(type, false); }
 
     bool setFocusedElement(Element*, PassRefPtr<Frame>, FocusType = FocusTypeNone);
 
     void setActive(bool);
     bool isActive() const { return m_isActive; }
@@ skipping 39 matching lines @@
     bool m_isActive;
     bool m_isFocused;
     bool m_isChangingFocusedFrame;
     bool m_containingWindowIsVisible;
 
 };
 
 } // namespace WebCore
 
 #endif // FocusController_h