Move IPC::MessageFilter and router to a separate file

content/renderer/render_thread_impl.cc

 // Copyright (c) 2012 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_thread_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <vector>
@@ skipping 675 matching lines @@
         routing_id);
   }
 }
 
 int RenderThreadImpl::GenerateRoutingID() {
   int routing_id = MSG_ROUTING_NONE;
   Send(new ViewHostMsg_GenerateRoutingID(&routing_id));
   return routing_id;
 }
 
-void RenderThreadImpl::AddFilter(IPC::ChannelProxy::MessageFilter* filter) {
+void RenderThreadImpl::AddFilter(IPC::MessageFilter* filter) {
   channel()->AddFilter(filter);
 }
 
-void RenderThreadImpl::RemoveFilter(IPC::ChannelProxy::MessageFilter* filter) {
+void RenderThreadImpl::RemoveFilter(IPC::MessageFilter* filter) {
   channel()->RemoveFilter(filter);
 }
 
 void RenderThreadImpl::AddObserver(RenderProcessObserver* observer) {
   observers_.AddObserver(observer);
 }
 
 void RenderThreadImpl::RemoveObserver(RenderProcessObserver* observer) {
   observers_.RemoveObserver(observer);
 }
@@ skipping 808 matching lines @@
   hidden_widget_count_--;
 
   if (!GetContentClient()->renderer()->RunIdleHandlerWhenWidgetsHidden()) {
     return;
   }
 
   ScheduleIdleHandler(kLongIdleHandlerDelayMs);
 }
 
 }  // namespace content