content/blimp: Set up hooks for enabling LTHRemote in the renderer.

blimp/engine/renderer/blimp_content_renderer_client.cc

 // Copyright 2015 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 "blimp/engine/renderer/blimp_content_renderer_client.h"
 
 #include "base/memory/ptr_util.h"
 #include "blimp/engine/mojo/blob_channel.mojom.h"
+#include "blimp/engine/renderer/blimp_remote_compositor_bridge.h"
 #include "blimp/engine/renderer/blob_channel_sender_proxy.h"
 #include "blimp/engine/renderer/engine_image_serialization_processor.h"
 #include "components/web_cache/renderer/web_cache_impl.h"
 
 namespace blimp {
 namespace engine {
 
 BlimpContentRendererClient::BlimpContentRendererClient() {}
 
 BlimpContentRendererClient::~BlimpContentRendererClient() {}
 
 void BlimpContentRendererClient::RenderThreadStarted() {
   web_cache_impl_.reset(new web_cache::WebCacheImpl());
   image_serialization_processor_.reset(new EngineImageSerializationProcessor(
       base::WrapUnique(new BlobChannelSenderProxy)));
 }
 
 cc::ImageSerializationProcessor*
 BlimpContentRendererClient::GetImageSerializationProcessor() {
   return image_serialization_processor_.get();
 }
 
+std::unique_ptr<cc::RemoteCompositorBridge>
+BlimpContentRendererClient::CreateRemoteCompositorBridge(
+    cc::RemoteProtoChannel* remote_proto_channel,
+    scoped_refptr<base::SingleThreadTaskRunner> compositor_main_task_runner) {
+  return base::MakeUnique<BlimpRemoteCompositorBridge>(
+      remote_proto_channel, std::move(compositor_main_task_runner));
+}
+
 }  // namespace engine
 }  // namespace blimp