Add MetalayerMode to the palette.

chrome/browser/chromeos/arc/voice_interaction/arc_voice_interaction_framework_service.h

Index: chrome/browser/chromeos/arc/voice_interaction/arc_voice_interaction_framework_service.h
diff --git a/chrome/browser/chromeos/arc/voice_interaction/arc_voice_interaction_framework_service.h b/chrome/browser/chromeos/arc/voice_interaction/arc_voice_interaction_framework_service.h
index 015acf8442b3b54f6381649f8f688b249f540750..f9a991ed45a525818dcb968ec659e2eb700c5ace 100644
--- a/chrome/browser/chromeos/arc/voice_interaction/arc_voice_interaction_framework_service.h
+++ b/chrome/browser/chromeos/arc/voice_interaction/arc_voice_interaction_framework_service.h
@@ -42,12 +42,24 @@ class ArcVoiceInteractionFrameworkService
   void CaptureFocusedWindow(
       const CaptureFocusedWindowCallback& callback) override;
   void CaptureFullscreen(const CaptureFullscreenCallback& callback) override;
+  void OnMetalayerComplete() override;
+
+  bool IsReady();
+  void ShowMetalayer(const base::Closure& done);
+  void HideMetalayer();
 
   // Whether enable-voice-interaction switch is present.
   static bool IsVoiceInteractionEnabled();
 
+  // For supporting ArcServiceManager::GetService<T>().
+  static const char kArcServiceName[];
+
  private:
+  void ShowMetalayer(bool visible);

[Luis Héctor Chávez, 2017/04/19 15:48:28]

please choose a different name to distinguish between the other ShowMetalayer().

[Vladislav Kaznacheev, 2017/04/19 23:42:59]

Done.

+
   mojo::Binding<mojom::VoiceInteractionFrameworkHost> binding_;
+  bool instance_ready_;
+  base::Closure metalayer_complete_;

[Luis Héctor Chávez, 2017/04/19 15:48:28]

maybe metalayer_closed_callback_?

[Vladislav Kaznacheev, 2017/04/19 23:42:59]

Done.

 
   DISALLOW_COPY_AND_ASSIGN(ArcVoiceInteractionFrameworkService);
 };