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 60 matching lines @@
    public:
     // Called whenever the state of the bridge has changed.
     virtual void OnStateChanged(State state) {}
 
     // Called when the instance has reached a boot phase
     virtual void OnInstanceBootPhase(InstanceBootPhase phase) {}
 
     // Called whenever ARC's availability has changed for this system.
     virtual void OnAvailableChanged(bool available) {}
 
+    // Called whenever the ARC video is ready.
+    virtual void OnVideoInstanceReady() {}
+
    protected:
     virtual ~Observer() {}
   };
 
   class NotificationObserver {
    public:
     // Called whenever a notification has been posted on Android side. This
     // event is used for both creation and update.
     virtual void OnNotificationPostedFromAndroid(
         const ArcNotificationData& data) {}
@@ skipping 72 matching lines @@
   // Adds or removes ARC app observers. This can only be called on the thread
   // that this class was created on.
   void AddAppObserver(AppObserver* observer);
   void RemoveAppObserver(AppObserver* observer);
 
   // Adds or removes ARC process observers. This can only be called on the
   // thread that this class was created on.
   void AddProcessObserver(ProcessObserver* observer);
   void RemoveProcessObserver(ProcessObserver* observer);
 
+  virtual VideoInstance* video_instance() = 0;
+
   // 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_; }
 
   // Requests registration of an input device on the ARC instance.
   // TODO(denniskempin): Make this interface more typesafe.
   // |name| should be the displayable name of the emulated device (e.g. "Chrome
   // OS Keyboard"), |device_type| the name of the device type (e.g. "keyboard")
@@ skipping 77 matching lines @@
 
   // The current state of the bridge.
   ArcBridgeService::State state_;
 
   DISALLOW_COPY_AND_ASSIGN(ArcBridgeService);
 };
 
 }  // namespace arc
 
 #endif  // COMPONENTS_ARC_ARC_BRIDGE_SERVICE_H_