Make document.activeElement work with OOPIF

content/browser/frame_host/render_frame_host_impl.cc

 // Copyright 2013 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_host_impl.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/containers/hash_tables.h"
 #include "base/lazy_instance.h"
@@ skipping 1839 matching lines @@
   if (frame_tree_node_->opener()) {
     frame_tree_node_->opener()->render_manager()->CreateOpenerProxies(
         GetSiteInstance(), frame_tree_node_);
   }
 
   int opener_routing_id =
       frame_tree_node_->render_manager()->GetOpenerRoutingID(GetSiteInstance());
   Send(new FrameMsg_UpdateOpener(GetRoutingID(), opener_routing_id));
 }
 
-void RenderFrameHostImpl::ClearFocus() {
-  Send(new FrameMsg_ClearFocus(routing_id_));
-}
-
 void RenderFrameHostImpl::ExtendSelectionAndDelete(size_t before,
                                                    size_t after) {
   Send(new InputMsg_ExtendSelectionAndDelete(routing_id_, before, after));
 }
 
 void RenderFrameHostImpl::JavaScriptDialogClosed(
     IPC::Message* reply_msg,
     bool success,
     const base::string16& user_input,
     bool dialog_was_suppressed) {
@@ skipping 432 matching lines @@
   *dst = src;
 
   if (src.routing_id != -1)
     dst->tree_id = RoutingIDToAXTreeID(src.routing_id);
 
   if (src.parent_routing_id != -1)
     dst->parent_tree_id = RoutingIDToAXTreeID(src.parent_routing_id);
 }
 
 }  // namespace content