Implement GpuArcVideoService for arc video accelerator

components/arc/common/arc_bridge.mojom

Index: components/arc/common/arc_bridge.mojom
diff --git a/components/arc/common/arc_bridge.mojom b/components/arc/common/arc_bridge.mojom
index af98bb1bee3a629026111de63436e2cca84febde..8e2e74a1e7c7c5907672d7d5221353164bbc1f71 100644
--- a/components/arc/common/arc_bridge.mojom
+++ b/components/arc/common/arc_bridge.mojom
@@ -10,6 +10,7 @@ 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
@@ -33,6 +34,9 @@ interface ArcBridgeHost {
 
   // 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 {