add voice interaction shortcut.

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

+// Copyright 2017 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.
+
+#ifndef CHROME_BROWSER_CHROMEOS_ARC_VOICE_INTERACTION_ARC_VOICE_INTERACTION_FRAMEWORK_SERVICE_H_
+#define CHROME_BROWSER_CHROMEOS_ARC_VOICE_INTERACTION_ARC_VOICE_INTERACTION_FRAMEWORK_SERVICE_H_
+
+#include <memory>
+
+#include "base/macros.h"
+#include "components/arc/arc_service.h"
+#include "components/arc/common/voice_interaction_framework.mojom.h"
+#include "components/arc/instance_holder.h"
+#include "mojo/public/cpp/bindings/binding.h"
+#include "ui/base/accelerators/accelerator.h"
+
+namespace arc {
+
+// This provides voice interaction context (currently screenshots)
+// to ARC to be used by VoiceInteractionSession. This class lives on the UI
+// thread.
+class ArcVoiceInteractionFrameworkService
+    : public ArcService,
+      public mojom::VoiceInteractionFrameworkHost,
+      public ui::AcceleratorTarget,
+      public InstanceHolder<
+          mojom::VoiceInteractionFrameworkInstance>::Observer {
+ public:
+  explicit ArcVoiceInteractionFrameworkService(
+      ArcBridgeService* bridge_service);
+  ~ArcVoiceInteractionFrameworkService() override;
+
+  // InstanceHolder<mojom::VoiceInteractionFrameworkInstance> overrides.
+  void OnInstanceReady() override;
+  void OnInstanceClosed() override;
+
+  // ui::AcceleratorTarget overrides.
+  bool AcceleratorPressed(const ui::Accelerator& accelerator) override;
+  bool CanHandleAccelerators() const override;
+
+  // mojom::VoiceInteractionFrameworkHost overrides.
+  void CaptureFocusedWindow(
+      const CaptureFocusedWindowCallback& callback) override;
+
+  // Whether enable-voice-interaction switch presents.

[Luis Héctor Chávez, 2017/03/18 03:02:12]

nit: s/presents/is present/.

[Muyuan, 2017/03/19 00:24:15]

Done.

+  static bool IsVoiceInteractionEnabled();
+
+ private:
+  mojo::Binding<mojom::VoiceInteractionFrameworkHost> binding_;
+
+  DISALLOW_COPY_AND_ASSIGN(ArcVoiceInteractionFrameworkService);
+};
+
+}  // namespace arc
+#endif  // CHROME_BROWSER_CHROMEOS_ARC_VOICE_INTERACTION_ARC_VOICE_INTERACTION_FRAMEWORK_SERVICE_H_