Implement GpuArcVideoService for arc video accelerator

components/arc/arc_service_manager.h

Index: components/arc/arc_service_manager.h
diff --git a/components/arc/arc_service_manager.h b/components/arc/arc_service_manager.h
index 07d62731d42a0c748edd7f78545f8960907f84c4..c5f96910bf4da5b5bc8ac0abf8e07cf4215bc5b5 100644
--- a/components/arc/arc_service_manager.h
+++ b/components/arc/arc_service_manager.h
@@ -14,12 +14,14 @@ namespace arc {
 class ArcBridgeService;
 class ArcInputBridge;
 class ArcSettingsBridge;
+class ArcVideoService;
 
 // Manages creation and destruction of services that communicate with the ARC
 // instance via the ArcBridgeService.
 class ArcServiceManager {
  public:
-  explicit ArcServiceManager(scoped_ptr<ArcSettingsBridge> settings_bridge);
+  ArcServiceManager(scoped_ptr<ArcSettingsBridge> settings_bridge,
+                    scoped_ptr<ArcVideoService> arc_video_service);
   virtual ~ArcServiceManager();
 
   // |arc_bridge_service| can only be accessed on the thread that this
@@ -35,6 +37,7 @@ class ArcServiceManager {
   scoped_ptr<ArcBridgeService> arc_bridge_service_;
   scoped_ptr<ArcInputBridge> arc_input_bridge_;
   scoped_ptr<ArcSettingsBridge> arc_settings_bridge_;
+  scoped_ptr<ArcVideoService> arc_video_service_;
 
   DISALLOW_COPY_AND_ASSIGN(ArcServiceManager);
 };