Fix keyboard focus for OOPIF-<webview>.

content/browser/frame_host/render_frame_proxy_host.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/browser/frame_host/render_frame_proxy_host.h"
 
 #include <utility>
 
 #include "base/lazy_instance.h"
 #include "content/browser/bad_message.h"
@@ skipping 342 matching lines @@
             ->GetRenderFrameProxyHost(target_rfh->GetSiteInstance());
     if (source_proxy)
       source_proxy_routing_id = source_proxy->GetRoutingID();
   }
 
   target_rfh->Send(new FrameMsg_AdvanceFocus(target_rfh->GetRoutingID(), type,
                                              source_proxy_routing_id));
 }
 
 void RenderFrameProxyHost::OnFrameFocused() {
-  frame_tree_node_->frame_tree()->SetFocusedFrame(frame_tree_node_,
-                                                  GetSiteInstance());
+  frame_tree_node_->current_frame_host()->delegate()->SetFocusedFrame(
+      frame_tree_node_, GetSiteInstance());
 }
 
 }  // namespace content