Add VoiceInteractionFrameworkHost::SetMetalayerEnabled

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

Index: chrome/browser/chromeos/arc/voice_interaction/arc_voice_interaction_framework_service.cc
diff --git a/chrome/browser/chromeos/arc/voice_interaction/arc_voice_interaction_framework_service.cc b/chrome/browser/chromeos/arc/voice_interaction/arc_voice_interaction_framework_service.cc
index f538d66278c6e8ff2ad04d90c396a2b575a58a0c..dc60b8845782d1ca4a291726e51f87111a3e5aa4 100644
--- a/chrome/browser/chromeos/arc/voice_interaction/arc_voice_interaction_framework_service.cc
+++ b/chrome/browser/chromeos/arc/voice_interaction/arc_voice_interaction_framework_service.cc
@@ -80,6 +80,7 @@ void ArcVoiceInteractionFrameworkService::OnInstanceClosed() {
   ash::Shell::Get()->accelerator_controller()->UnregisterAll(this);
   if (!metalayer_closed_callback_.is_null())
     base::ResetAndReturn(&metalayer_closed_callback_).Run();
+  metalayer_enabled_ = false;
 }
 
 bool ArcVoiceInteractionFrameworkService::AcceleratorPressed(
@@ -151,13 +152,16 @@ void ArcVoiceInteractionFrameworkService::OnMetalayerClosed() {
     base::ResetAndReturn(&metalayer_closed_callback_).Run();
 }
 
+void ArcVoiceInteractionFrameworkService::SetMetalayerEnabled(bool enabled) {
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
+  metalayer_enabled_ = enabled;
+  if (!metalayer_enabled_ && !metalayer_closed_callback_.is_null())
+    base::ResetAndReturn(&metalayer_closed_callback_).Run();
+}
+
 bool ArcVoiceInteractionFrameworkService::IsMetalayerSupported() {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
-  mojom::VoiceInteractionFrameworkInstance* framework_instance =
-      ARC_GET_INSTANCE_FOR_METHOD(
-          arc_bridge_service()->voice_interaction_framework(),
-          SetMetalayerVisibility);
-  return framework_instance;
+  return metalayer_enabled_;
 }
 
 void ArcVoiceInteractionFrameworkService::ShowMetalayer(