Make <webview> use out-of-process iframe architecture.

content/renderer/render_frame_proxy.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_RENDERER_RENDER_FRAME_PROXY_H_
 #define CONTENT_RENDERER_RENDER_FRAME_PROXY_H_
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "content/common/content_export.h"
@@ skipping 102 matching lines @@
   virtual void initializeChildFrame(
       const blink::WebRect& frame_rect,
       float scale_factor);
   virtual void navigate(const blink::WebURLRequest& request,
                         bool should_replace_current_entry);
   virtual void forwardInputEvent(const blink::WebInputEvent* event);
 
   // IPC handlers
   void OnDidStartLoading();
 
+  void SetWebRemoteFrame(blink::WebRemoteFrame* remote_frame);
+
  private:
   RenderFrameProxy(int routing_id, int frame_routing_id);
 
   void Init(blink::WebRemoteFrame* frame, RenderViewImpl* render_view);
 
   // Navigating a top-level frame cross-process does not swap the WebLocalFrame
   // for a WebRemoteFrame in the frame tree. In this case, this WebRemoteFrame
   // is not attached to the frame tree and there is no blink::Frame associated
   // with it, so it is not in state where most operations on it will succeed.
   bool IsMainFrameDetachedFromTree() const;
@@ skipping 20 matching lines @@
   scoped_refptr<ChildFrameCompositingHelper> compositing_helper_;
 
   RenderViewImpl* render_view_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameProxy);
 };
 
 }  // namespace
 
 #endif  // CONTENT_RENDERER_RENDER_FRAME_PROXY_H_