Move IPC::MessageFilter and router to a separate file

content/browser/gpu/browser_gpu_channel_host_factory.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/browser/gpu/browser_gpu_channel_host_factory.h"
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
 #include "base/threading/thread_restrictions.h"
 #include "content/browser/gpu/gpu_data_manager_impl.h"
 #include "content/browser/gpu/gpu_process_host.h"
 #include "content/browser/gpu/gpu_surface_tracker.h"
 #include "content/common/child_process_host_impl.h"
 #include "content/common/gpu/client/gpu_memory_buffer_impl_shm.h"
 #include "content/common/gpu/gpu_messages.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/gpu_data_manager.h"
 #include "content/public/common/content_client.h"
 #include "ipc/ipc_forwarding_message_filter.h"
+#include "ipc/message_filter.h"
 
 namespace content {
 
 BrowserGpuChannelHostFactory* BrowserGpuChannelHostFactory::instance_ = NULL;
 
 BrowserGpuChannelHostFactory::CreateRequest::CreateRequest()
     : event(true, false),
       gpu_host_id(0),
       route_id(MSG_ROUTING_NONE) {
 }
@@ skipping 362 matching lines @@
       new GpuMemoryBufferImplShm(gfx::Size(width, height), internalformat));
   if (!buffer->InitializeFromSharedMemory(shm.Pass()))
     return scoped_ptr<gfx::GpuMemoryBuffer>();
 
   return buffer.PassAs<gfx::GpuMemoryBuffer>();
 }
 
 // static
 void BrowserGpuChannelHostFactory::AddFilterOnIO(
     int host_id,
-    scoped_refptr<IPC::ChannelProxy::MessageFilter> filter) {
+    scoped_refptr<IPC::MessageFilter> filter) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   GpuProcessHost* host = GpuProcessHost::FromID(host_id);
   if (host)
     host->AddFilter(filter.get());
 }
 
 void BrowserGpuChannelHostFactory::SetHandlerForControlMessages(
       const uint32* message_ids,
       size_t num_messages,
@@ skipping 11 matching lines @@
   filter->AddRoute(MSG_ROUTING_CONTROL, handler);
 
   GetIOLoopProxy()->PostTask(
       FROM_HERE,
       base::Bind(&BrowserGpuChannelHostFactory::AddFilterOnIO,
                  gpu_host_id_,
                  filter));
 }
 
 }  // namespace content