Index: chrome/browser/extensions/api/audio/audio_service.cc |
diff --git a/chrome/browser/extensions/api/audio/audio_service.cc b/chrome/browser/extensions/api/audio/audio_service.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..3406f65cd4c4afdd61872d0395088d3a6356a2fb |
--- /dev/null |
+++ b/chrome/browser/extensions/api/audio/audio_service.cc |
@@ -0,0 +1,40 @@ |
+// Copyright (c) 2013 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. |
+ |
+#include "chrome/browser/extensions/api/audio/audio_service.h" |
+ |
+namespace extensions { |
+ |
+class AudioServiceImpl : public AudioService { |
+ public: |
+ AudioServiceImpl() {} |
+ virtual ~AudioServiceImpl() {} |
+ |
+ // Called by listeners to this service to add/remove themselves as observers. |
+ virtual void AddObserver(Observer* observer); |
+ virtual void RemoveObserver(Observer* observer); |
+ |
+ // Start to query audio device information. |
+ virtual void StartGetInfo(const GetInfoCallback& callback); |
+}; |
+ |
+void AudioServiceImpl::AddObserver(Observer* observer) { |
+ // TODO: implement this for platforms other than Chrome OS. |
+} |
+ |
+void AudioServiceImpl::RemoveObserver(Observer* observer) { |
+ // TODO: implement this for platforms other than Chrome OS. |
+} |
+ |
+AudioService* AudioService::CreateInstance() { |
+ return new AudioServiceImpl; |
+} |
+ |
+void AudioServiceImpl::StartGetInfo(const GetInfoCallback& callback) { |
+ // TODO: implement this for platforms other than Chrome OS. |
+ if (!callback.is_null()) |
+ callback.Run(OutputInfo(), InputInfo(), false); |
+} |
+ |
+} // namespace extensions |