Implement GpuArcVideoService for arc video accelerator

components/arc/arc_bridge_service_impl.h

Index: components/arc/arc_bridge_service_impl.h
diff --git a/components/arc/arc_bridge_service_impl.h b/components/arc/arc_bridge_service_impl.h
index 90e9b92e49757357e08a38bce2207e1ccdaeda47..9e9c77857620ea5117f0b5e982fab076a54b67c9 100644
--- a/components/arc/arc_bridge_service_impl.h
+++ b/components/arc/arc_bridge_service_impl.h
@@ -55,6 +55,9 @@ class ArcBridgeServiceImpl : public ArcBridgeService,
                       const std::string& activity,
                       ScaleFactor scale_factor) override;
 
+  bool NotifyVideoAcceleratorChannelCreated(
+      const IPC::ChannelHandle& handle) override;
+
  private:
   friend class ArcBridgeTest;
   FRIEND_TEST_ALL_PREFIXES(ArcBridgeTest, Basic);
@@ -89,6 +92,9 @@ class ArcBridgeServiceImpl : public ArcBridgeService,
   void OnAcquireDisplayWakeLock(DisplayWakeLockType type) override;
   void OnReleaseDisplayWakeLock(DisplayWakeLockType type) override;
 
+  // Called whenever ARC sends request for video accelerator channel.
+  void OnRequestArcVideoAcceleratorChannel() override;
+
   // ArcBridgeBootstrap::Delegate:
   void OnConnectionEstablished(ArcBridgeInstancePtr instance) override;
   void OnStopped() override;