Send vsync timebase updates to the browser compositor

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/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/gpu/gpu_messages.h"
 #include "content/common/child_process_host_impl.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/common/content_client.h"
+#include "ipc/ipc_forwarding_message_filter.h"
 
 namespace content {
 
 BrowserGpuChannelHostFactory* BrowserGpuChannelHostFactory::instance_ = NULL;
 
 BrowserGpuChannelHostFactory::CreateRequest::CreateRequest()
     : event(false, false),
       gpu_host_id(0),
       route_id(MSG_ROUTING_NONE) {
 }
@@ skipping 257 matching lines @@
   gpu_channel_ = new GpuChannelHost(this, request.gpu_host_id, gpu_client_id_);
   gpu_channel_->set_gpu_info(request.gpu_info);
   GetContentClient()->SetGpuInfo(request.gpu_info);
 
   // Connect to the GPU process if a channel name was received.
   gpu_channel_->Connect(request.channel_handle);
 
   return gpu_channel_.get();
 }
 
+// static
+void BrowserGpuChannelHostFactory::AddFilterOnIO(
+    int host_id,
+    scoped_refptr<IPC::ChannelProxy::MessageFilter> filter) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  GpuProcessHost* host = GpuProcessHost::FromID(host_id);
+  if (host)
+    host->AddFilter(filter);
+}
+
+void BrowserGpuChannelHostFactory::SetHandlerForControlMessages(
+      const uint32* message_ids,
+      size_t num_messages,
+      const base::Callback<void(const IPC::Message&)>& handler,
+      base::TaskRunner* target_task_runner) {
+  scoped_refptr<IPC::ForwardingMessageFilter> filter =
+      new IPC::ForwardingMessageFilter(message_ids,
+                                       num_messages,
+                                       target_task_runner);
+  filter->AddRoute(MSG_ROUTING_CONTROL, handler);
+
+  GetIOLoopProxy()->PostTask(
+      FROM_HERE,
+      base::Bind(&BrowserGpuChannelHostFactory::AddFilterOnIO,
+                 gpu_host_id_,
+                 filter));
+}
+
 }  // namespace content