Implement GpuArcVideoService for arc video accelerator

components/arc/common/arc_bridge.mojom

 // 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.
 
 module arc;
 
 import "app.mojom";
 import "input.mojom";
 import "notifications.mojom";
 import "power.mojom";
 import "process.mojom";
 import "settings.mojom";
+import "video.mojom";
 
 interface ArcBridgeHost {
   // Keep the entries alphabetical. In order to do so without breaking
   // compatibility with the ARC instance, explicitly assign each interface a
   // unique ordinal.
 
   // Notifies Chrome that the AppInstance interface is ready.
   OnAppInstanceReady@100(AppInstance instance_ptr);
 
   // Notifies Chrome that the InputInstnace interface is ready.
   OnInputInstanceReady@101(InputInstance instance_ptr);
 
   // Notifies Chrome that the NotificationsInstance interface is ready.
   OnNotificationsInstanceReady@102(NotificationsInstance instance_ptr);
 
   // Notifies Chrome that the PowerInstance interface is ready.
   OnPowerInstanceReady@103(PowerInstance instance_ptr);
 
   // Notifies Chrome that the ProcessInstance interface is ready.
   OnProcessInstanceReady@104(ProcessInstance instance_ptr);
 
   // Notifies Chrome that the SettingsInstance interface is ready.
   OnSettingsInstanceReady@105(SettingsInstance instance_ptr);
+
+  // Notifies Chrome that the VideoInstance interface is ready.
+  OnVideoInstanceReady@107(VideoInstance instance_ptr);
 };
 
 interface ArcBridgeInstance {
   // Establishes full-duplex communication with the host.
   // |host_ptr| is the MessagePipe endpoint that is bound to the
   // ArcBridgeHostPtr binding.
   Init@0(ArcBridgeHost host_ptr);
 };