Implement GpuArcVideoService for arc video accelerator

components/arc/arc_bridge_service.h

 // 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.
 
 #ifndef COMPONENTS_ARC_ARC_BRIDGE_SERVICE_H_
 #define COMPONENTS_ARC_ARC_BRIDGE_SERVICE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 79 matching lines @@
     virtual void OnPowerInstanceClosed() {}
 
     // Called whenever the ARC process interface state changes.
     virtual void OnProcessInstanceReady() {}
     virtual void OnProcessInstanceClosed() {}
 
     // Called whenever the ARC settings interface state changes.
     virtual void OnSettingsInstanceReady() {}
     virtual void OnSettingsInstanceClosed() {}
 
+    // Called whenever the ARC video interface state changes.
+    virtual void OnVideoInstanceReady() {}
+    virtual void OnVideoInstanceClosed() {}
+
    protected:
     virtual ~Observer() {}
   };
 
   ~ArcBridgeService() override;
 
   // Gets the global instance of the ARC Bridge Service. This can only be
   // called on the thread that this class was created on.
   static ArcBridgeService* Get();
 
@@ skipping 25 matching lines @@
   // you want to be notified when this is ready. This can only be called on the
   // thread that this class was created on.
   AppInstance* app_instance() { return app_ptr_.get(); }
   InputInstance* input_instance() { return input_ptr_.get(); }
   NotificationsInstance* notifications_instance() {
     return notifications_ptr_.get();
   }
   PowerInstance* power_instance() { return power_ptr_.get(); }
   ProcessInstance* process_instance() { return process_ptr_.get(); }
   SettingsInstance* settings_instance() { return settings_ptr_.get(); }
+  VideoInstance* video_instance() { return video_ptr_.get(); }
 
   int32_t app_version() const { return app_ptr_.version(); }
   int32_t input_version() const { return input_ptr_.version(); }
   int32_t notifications_version() const { return notifications_ptr_.version(); }
   int32_t power_version() const { return power_ptr_.version(); }
   int32_t process_version() const { return process_ptr_.version(); }
   int32_t settings_version() const { return settings_ptr_.version(); }
+  int32_t video_version() const { return video_ptr_.version(); }
 
   // ArcHost:
   void OnAppInstanceReady(AppInstancePtr app_ptr) override;
   void OnInputInstanceReady(InputInstancePtr input_ptr) override;
   void OnNotificationsInstanceReady(
       NotificationsInstancePtr notifications_ptr) override;
   void OnPowerInstanceReady(PowerInstancePtr power_ptr) override;
   void OnProcessInstanceReady(ProcessInstancePtr process_ptr) override;
   void OnSettingsInstanceReady(SettingsInstancePtr process_ptr) override;
+  void OnVideoInstanceReady(VideoInstancePtr video_ptr) override;
 
   // Gets the current state of the bridge service.
   State state() const { return state_; }
 
   // Gets if ARC is available in this system.
   bool available() const { return available_; }
 
  protected:
   ArcBridgeService();
 
@@ skipping 17 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(ArcBridgeTest, ShutdownMidStartup);
   FRIEND_TEST_ALL_PREFIXES(ArcBridgeTest, Restart);
 
   // Called when one of the individual channels is closed.
   void CloseAppChannel();
   void CloseInputChannel();
   void CloseNotificationsChannel();
   void ClosePowerChannel();
   void CloseProcessChannel();
   void CloseSettingsChannel();
+  void CloseVideoChannel();
 
   // Callbacks for QueryVersion.
   void OnAppVersionReady(int32_t version);
   void OnInputVersionReady(int32_t version);
   void OnNotificationsVersionReady(int32_t version);
   void OnPowerVersionReady(int32_t version);
   void OnProcessVersionReady(int32_t version);
   void OnSettingsVersionReady(int32_t version);
+  void OnVideoVersionReady(int32_t version);
 
   // Mojo interfaces.
   AppInstancePtr app_ptr_;
   InputInstancePtr input_ptr_;
   NotificationsInstancePtr notifications_ptr_;
   PowerInstancePtr power_ptr_;
   ProcessInstancePtr process_ptr_;
   SettingsInstancePtr settings_ptr_;
+  VideoInstancePtr video_ptr_;
 
   // Temporary Mojo interfaces.  After a Mojo interface pointer has been
   // received from the other endpoint, we still need to asynchronously query
   // its version.  While that is going on, we should still return nullptr on
   // the xxx_instance() functions.
   // To keep the xxx_instance() functions being trivial, store the instance
   // pointer in a temporary variable to avoid losing its reference.
   AppInstancePtr temporary_app_ptr_;
   InputInstancePtr temporary_input_ptr_;
   NotificationsInstancePtr temporary_notifications_ptr_;
   PowerInstancePtr temporary_power_ptr_;
   ProcessInstancePtr temporary_process_ptr_;
   SettingsInstancePtr temporary_settings_ptr_;
+  VideoInstancePtr temporary_video_ptr_;
 
   base::ObserverList<Observer> observer_list_;
 
   base::ThreadChecker thread_checker_;
 
   // If the ARC instance service is available.
   bool available_;
 
   // The current state of the bridge.
   ArcBridgeService::State state_;
 
   // WeakPtrFactory to use callbacks.
   base::WeakPtrFactory<ArcBridgeService> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ArcBridgeService);
 };
 
 }  // namespace arc
 
 #endif  // COMPONENTS_ARC_ARC_BRIDGE_SERVICE_H_