add voice interaction shortcut.

components/arc/arc_bridge_service.h

Index: components/arc/arc_bridge_service.h
diff --git a/components/arc/arc_bridge_service.h b/components/arc/arc_bridge_service.h
index 60abe9d52dc3dcc9bf648fe13476f18ad6a53d45..4d12a0d27c9314463f2e264cabc4c9f0aec3d69c 100644
--- a/components/arc/arc_bridge_service.h
+++ b/components/arc/arc_bridge_service.h
@@ -38,6 +38,8 @@ class ProcessInstance;
 class StorageManagerInstance;
 class TtsInstance;
 class VideoInstance;
+class VoiceInteractionArcHomeInstance;
+class VoiceInteractionCaptureInstance;
 class WallpaperInstance;
 
 }  // namespace mojom
@@ -91,6 +93,14 @@ class ArcBridgeService {
   }
   InstanceHolder<mojom::TtsInstance>* tts() { return &tts_; }
   InstanceHolder<mojom::VideoInstance>* video() { return &video_; }
+  InstanceHolder<mojom::VoiceInteractionArcHomeInstance>*
+  voice_interaction_arc_home() {
+    return &voice_interaction_arc_home_;
+  }
+  InstanceHolder<mojom::VoiceInteractionCaptureInstance>*
+  voice_interaction_capture() {
+    return &voice_interaction_capture_;
+  }
   InstanceHolder<mojom::WallpaperInstance>* wallpaper() { return &wallpaper_; }
 
  private:
@@ -118,6 +128,10 @@ class ArcBridgeService {
   InstanceHolder<mojom::StorageManagerInstance> storage_manager_;
   InstanceHolder<mojom::TtsInstance> tts_;
   InstanceHolder<mojom::VideoInstance> video_;
+  InstanceHolder<mojom::VoiceInteractionArcHomeInstance>
+      voice_interaction_arc_home_;
+  InstanceHolder<mojom::VoiceInteractionCaptureInstance>
+      voice_interaction_capture_;
   InstanceHolder<mojom::WallpaperInstance> wallpaper_;
 
   DISALLOW_COPY_AND_ASSIGN(ArcBridgeService);