Move the frame tree into the embedder.

Source/web/FrameLoaderClientImpl.cpp

 /*
  * Copyright (C) 2009, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2011 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 216 matching lines @@
     if (m_webFrame->permissionClient())
         m_webFrame->permissionClient()->didNotAllowPlugins(m_webFrame);
 
 }
 
 bool FrameLoaderClientImpl::hasWebView() const
 {
     return m_webFrame->viewImpl();
 }
 
+Frame* FrameLoaderClientImpl::parent() const
+{
+    WebFrameImpl* frame = toWebFrameImpl(m_webFrame->parent());
+    return frame ? frame->frame() : 0;
+}
+
+Frame* FrameLoaderClientImpl::top() const
+{
+    WebFrameImpl* frame = toWebFrameImpl(m_webFrame->top());
+    return frame ? frame->frame() : 0;
+}
+
+Frame* FrameLoaderClientImpl::previousSibling() const
+{
+    WebFrameImpl* frame = toWebFrameImpl(m_webFrame->previousSibling());
+    return frame ? frame->frame() : 0;
+}
+
+Frame* FrameLoaderClientImpl::nextSibling() const
+{
+    WebFrameImpl* frame = toWebFrameImpl(m_webFrame->nextSibling());
+    return frame ? frame->frame() : 0;
+}
+
+Frame* FrameLoaderClientImpl::firstChild() const
+{
+    WebFrameImpl* frame = toWebFrameImpl(m_webFrame->firstChild());
+    return frame ? frame->frame() : 0;
+}
+
+Frame* FrameLoaderClientImpl::lastChild() const
+{
+    WebFrameImpl* frame = toWebFrameImpl(m_webFrame->lastChild());
+    return frame ? frame->frame() : 0;
+}
+
 void FrameLoaderClientImpl::detachedFromParent()
 {
     // Alert the client that the frame is being detached. This is the last
     // chance we have to communicate with the client.
     RefPtr<WebFrameImpl> protector(m_webFrame);
 
     WebFrameClient* client = m_webFrame->client();
     if (!client)
         return;
 
@@ skipping 498 matching lines @@
     return m_webFrame->sharedWorkerRepositoryClient();
 }
 
 void FrameLoaderClientImpl::didStopAllLoaders()
 {
     if (m_webFrame->client())
         m_webFrame->client()->didAbortLoading(m_webFrame);
 }
 
 } // namespace blink