Revert 170347 "Convert HTMLFrameOwnerElement and FocusController..."

Source/core/frame/Frame.h

Index: Source/core/frame/Frame.h
===================================================================
--- Source/core/frame/Frame.h	(revision 170478)
+++ Source/core/frame/Frame.h	(working copy)
@@ -71,10 +71,6 @@
 
     bool isMainFrame() const;
 
-    void disconnectOwnerElement();
-
-    HTMLFrameOwnerElement* ownerElement() const;
-
     // FIXME: DOMWindow and Document should both be moved to LocalFrame
     // after RemoteFrame is complete enough to exist without them.
     virtual void setDOMWindow(PassRefPtrWillBeRawPtr<DOMWindow>);
@@ -116,12 +112,6 @@
 {
     return m_domWindow.get();
 }
-
-inline HTMLFrameOwnerElement* Frame::ownerElement() const
-{
-    return m_ownerElement;
-}
-
 } // namespace WebCore
 
 #endif // Frame_h