Convert HTMLFrameOwnerElement and FocusController to use Frame.

Source/core/frame/Frame.h

Index: Source/core/frame/Frame.h
diff --git a/Source/core/frame/Frame.h b/Source/core/frame/Frame.h
index 82edd69195305712220249d113f3020077587c98..fc2ab2acedab6b3196781caffdec572a9214850a 100644
--- a/Source/core/frame/Frame.h
+++ b/Source/core/frame/Frame.h
@@ -69,6 +69,10 @@ public:
 
     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(PassRefPtr<DOMWindow>);
@@ -109,6 +113,12 @@ inline DOMWindow* Frame::domWindow() const
 {
     return m_domWindow.get();
 }
+
+inline HTMLFrameOwnerElement* Frame::ownerElement() const
+{
+    return m_ownerElement;
+}
+
 } // namespace WebCore
 
 #endif // Frame_h