Added message filter receiving frames from compositor

content/browser/renderer_host/render_process_host_impl.cc

 // Copyright 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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 1185 matching lines @@
 
   AddFilter(new GamepadBrowserMessageFilter());
   AddFilter(new ProfilerMessageFilter(PROCESS_TYPE_RENDERER));
   AddFilter(new HistogramMessageFilter());
   AddFilter(new MemoryMessageFilter(this));
   AddFilter(new PushMessagingMessageFilter(
       GetID(), storage_partition_impl_->GetServiceWorkerContext()));
 #if defined(OS_ANDROID)
   AddFilter(new ScreenOrientationMessageFilterAndroid());
 #endif
+  filter_ = new SynchronousCompositorObserver(GetID());
+  AddFilter(filter_);
+}
+
+SynchronousCompositorObserver* RenderProcessHostImpl::GetFilter() {
+  return filter_;
 }
 
 void RenderProcessHostImpl::RegisterMojoInterfaces() {
   std::unique_ptr<shell::InterfaceRegistry> registry(
       new shell::InterfaceRegistry);
 
   channel_->AddAssociatedInterface(
       base::Bind(&RenderProcessHostImpl::OnRouteProviderRequest,
                  base::Unretained(this)));
 
@@ skipping 1808 matching lines @@
   LOG(ERROR) << "Terminating render process for bad Mojo message: " << error;
 
   // The ReceivedBadMessage call below will trigger a DumpWithoutCrashing. Alias
   // enough information here so that we can determine what the bad message was.
   base::debug::Alias(&error);
   bad_message::ReceivedBadMessage(process.get(),
                                   bad_message::RPH_MOJO_PROCESS_ERROR);
 }
 
 }  // namespace content