Implement GpuArcVideoService for arc video accelerator

components/arc/arc_bridge_service.cc

Index: components/arc/arc_bridge_service.cc
diff --git a/components/arc/arc_bridge_service.cc b/components/arc/arc_bridge_service.cc
index 6565416c8a57115ecc3142bb9a2b7ccb591a010d..57434a569838bc420cde1e2abc0ff8f25b8228d0 100644
--- a/components/arc/arc_bridge_service.cc
+++ b/components/arc/arc_bridge_service.cc
@@ -134,6 +134,18 @@ bool ArcBridgeService::RegisterInputDevice(const std::string& name,
       name, device_type, base::FileDescriptor(fd.Pass())));
 }
 
+bool ArcBridgeService::NotifyVideoAcceleratorConnectionCreated(
+    IPC::ChannelHandle handle) {
+  DCHECK(origin_task_runner_->RunsTasksOnCurrentThread());
+  if (state_ != State::READY) {
+    LOG(ERROR) << "Called NotifyVideoAcceleratorConnectionCreated when the "
+                  "service is not ready";
+    return false;
+  }
+  return ipc_channel_->Send(
+      new ArcInstanceMsg_NotifyVideoAcceleratorConnecitonCreated(handle));
+}
+
 void ArcBridgeService::SocketConnect(const base::FilePath& socket_path) {
   DCHECK(origin_task_runner_->RunsTasksOnCurrentThread());
   if (state_ != State::STOPPED) {
@@ -240,6 +252,11 @@ void ArcBridgeService::OnInstanceReady() {
   SetState(State::READY);
 }
 
+void ArcBridgeService::OnCreateArcVideoAcceleratorConnection() {
+  FOR_EACH_OBSERVER(Observer, observer_list_,
+                    OnCreateArcVideoAcceleratorConnection());
+}
+
 void ArcBridgeService::SetState(State state) {
   DCHECK(origin_task_runner_->RunsTasksOnCurrentThread());
   // DCHECK on enum classes not supported.
@@ -254,6 +271,8 @@ bool ArcBridgeService::OnMessageReceived(const IPC::Message& message) {
 
   IPC_BEGIN_MESSAGE_MAP(ArcBridgeService, message)
     IPC_MESSAGE_HANDLER(ArcInstanceHostMsg_InstanceReady, OnInstanceReady)
+    IPC_MESSAGE_HANDLER(ArcInstanceHostMsg_CreateArcVideoAcceleratorConnection,
+                        OnCreateArcVideoAcceleratorConnection)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()