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

content/renderer/render_frame_proxy.cc

 // 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.
 
 #include "content/renderer/render_frame_proxy.h"
 
 #include <map>
 
 #include "base/lazy_instance.h"
 #include "content/child/webmessageportchannel_impl.h"
@@ skipping 122 matching lines @@
 
   FrameMap::iterator it = g_frame_map.Get().find(web_frame_);
   CHECK(it != g_frame_map.Get().end());
   CHECK_EQ(it->second, this);
   g_frame_map.Get().erase(it);
 
   RenderThread::Get()->RemoveRoute(routing_id_);
   g_routing_id_proxy_map.Get().erase(routing_id_);
 }
 
+void RenderFrameProxy::SetWebRemoteFrame(
+    blink::WebRemoteFrame* remote_frame) {
+  web_frame_ = remote_frame;
+}
+
 void RenderFrameProxy::Init(blink::WebRemoteFrame* web_frame,
                             RenderViewImpl* render_view) {
   CHECK(web_frame);
   CHECK(render_view);
 
   web_frame_ = web_frame;
   render_view_ = render_view;
 
   // TODO(nick): Should all RenderFrameProxies remain observers of their views?
   render_view_->RegisterRenderFrameProxy(this);
@@ skipping 215 matching lines @@
       blink::WebUserGestureIndicator::isProcessingUserGesture();
   blink::WebUserGestureIndicator::consumeUserGesture();
   Send(new FrameHostMsg_OpenURL(routing_id_, params));
 }
 
 void RenderFrameProxy::forwardInputEvent(const blink::WebInputEvent* event) {
   Send(new FrameHostMsg_ForwardInputEvent(routing_id_, event));
 }
 
 }  // namespace