Convert HTMLFrameOwnerElement and FocusController to use Frame.

Source/core/frame/Frame.h

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999-2001 Lars Knoll <knoll@kde.org>
  *                     1999-2001 Antti Koivisto <koivisto@kde.org>
  *                     2000-2001 Simon Hausmann <hausmann@kde.org>
  *                     2000-2001 Dirk Mueller <mueller@kde.org>
  *                     2000 Stefan Schimanski <1Stein@gmx.de>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
@@ skipping 51 matching lines @@
     virtual void detachFromFrameHost();
 
     // NOTE: Page is moving out of Blink up into the browser process as
     // part of the site-isolation (out of process iframes) work.
     // FrameHost should be used instead where possible.
     Page* page() const;
     FrameHost* host() const; // Null when the frame is detached.
 
     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>);
     DOMWindow* domWindow() const;
     Document* document() const;
 
     ChromeClient& chromeClient() const;
 
     RenderView* contentRenderer() const; // Root of the render tree for the document contained in this frame.
 
@@ skipping 20 matching lines @@
     // Temporary hack for history.
     int64_t m_frameID;
 
     blink::WebLayer* m_remotePlatformLayer;
 };
 
 inline DOMWindow* Frame::domWindow() const
 {
     return m_domWindow.get();
 }
+
+inline HTMLFrameOwnerElement* Frame::ownerElement() const
+{
+    return m_ownerElement;
+}
+
 } // namespace WebCore
 
 #endif // Frame_h