Host side implementation of ARC tts.

components/arc/tts/arc_tts_service.h

+// Copyright 2016 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 COMPONENTS_ARC_TTS_ARC_TTS_SERVICE_H_
+#define COMPONENTS_ARC_TTS_ARC_TTS_SERVICE_H_
+
+#include "base/macros.h"
+#include "components/arc/arc_service.h"
+#include "components/arc/common/tts.mojom.h"
+#include "components/arc/instance_holder.h"
+
+namespace arc {
+
+class ArcBridgeService;
+
+class ArcTtsService : public ArcService,

[hidehiko, 2016/07/29 09:25:53]

This is no longer needed here. Instead you'll need to create another service in
chrome/browser/chromeos/arc/

[David Tseng, 2016/08/01 20:21:41]

Sorry; yes, this was actually all that was needed to address the deps issue in
patchset 1. Moved.

+                      public InstanceHolder<mojom::TtsInstance>::Observer {
+ public:
+  explicit ArcTtsService(ArcBridgeService* bridge_service);
+  ~ArcTtsService() override;
+
+  // InstanceHolder<mojom::TtsInstance>::Observer overrides:
+  void OnInstanceReady() override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ArcTtsService);
+};
+
+}  // namespace arc
+
+#endif  // COMPONENTS_ARC_TTS_ARC_TTS_SERVICE_H_