Revert of Cross-process iframe accessibility.

content/browser/frame_host/render_frame_proxy_host.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_PROXY_HOST_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_PROXY_HOST_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "content/browser/frame_host/render_frame_host_impl.h"
 #include "content/browser/site_instance_impl.h"
@@ skipping 37 matching lines @@
 // * When navigating cross-process and the existing document has an unload
 // event handler. When the new navigation commits, RenderFrameHostManager
 // creates a RenderFrameProxyHost for the old SiteInstance and uses it going
 // forward. It also instructs the RenderFrameHost to run the unload event
 // handler and is kept alive for the duration. Once the event handling is
 // complete, the RenderFrameHost is deleted.
 class RenderFrameProxyHost
     : public IPC::Listener,
       public IPC::Sender {
  public:
-  static RenderFrameProxyHost* FromID(int process_id, int routing_id);
-
   RenderFrameProxyHost(SiteInstance* site_instance,
                        FrameTreeNode* frame_tree_node);
   virtual ~RenderFrameProxyHost();
 
   RenderProcessHost* GetProcess() {
     return site_instance_->GetProcess();
   }
 
   // Initializes the object and creates the RenderFrameProxy in the process
   // for the SiteInstance.
   bool InitRenderFrameProxy();
 
   int GetRoutingID() {
     return routing_id_;
   }
 
   SiteInstance* GetSiteInstance() {
     return site_instance_.get();
   }
 
-  FrameTreeNode* frame_tree_node() const { return frame_tree_node_; };
-
   void SetChildRWHView(RenderWidgetHostView* view);
 
   // TODO(nasko): The following methods should be removed once we don't have a
   // swapped out state on RenderFrameHosts. See https://crbug.com/357747.
   RenderFrameHostImpl* render_frame_host() {
     return render_frame_host_.get();
   }
   RenderViewHostImpl* GetRenderViewHost();
 
   void TakeFrameHostOwnership(
@@ skipping 35 matching lines @@
   // TODO(nasko): This can be removed once we don't have a swapped out state on
   // RenderFrameHosts. See https://crbug.com/357747.
   scoped_ptr<RenderFrameHostImpl> render_frame_host_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameProxyHost);
 };
 
 }  // namespace
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_PROXY_HOST_H_