Remove SVGDocument binding

Source/core/html/HTMLFrameOwnerElement.cpp

 /*
  * Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 95 matching lines @@
 void HTMLFrameOwnerElement::setSandboxFlags(SandboxFlags flags)
 {
     m_sandboxFlags = flags;
 }
 
 bool HTMLFrameOwnerElement::isKeyboardFocusable() const
 {
     return m_contentFrame && HTMLElement::isKeyboardFocusable();
 }
 
-SVGDocument* HTMLFrameOwnerElement::getSVGDocument(ExceptionState& exceptionState) const
+Document* HTMLFrameOwnerElement::getSVGDocument(ExceptionState& exceptionState) const

[Inactive, 2014/01/24 00:00:38]

Why do we need to return a Document. We can keep returning an SVGDocument on
native side, right? I think we only need to return a Document on IDL side.

 {
     Document* doc = contentDocument();
     if (doc && doc->isSVGDocument())
         return toSVGDocument(doc);
     return 0;
 }
 
 bool HTMLFrameOwnerElement::loadOrRedirectSubframe(const KURL& url, const AtomicString& frameName, bool lockBackForwardList)
 {
     RefPtr<Frame> parentFrame = document().frame();
@@ skipping 40 matching lines @@
     // FIXME: In this case the Frame will have finished loading before
     // it's being added to the child list. It would be a good idea to
     // create the child first, then invoke the loader separately.
     if (childFrame->loader().state() == FrameStateComplete && !childFrame->loader().policyDocumentLoader())
         childFrame->loader().checkCompleted();
     return true;
 }
 
 
 } // namespace WebCore