chrome.audio API: treat mute as system wide property

extensions/browser/api/audio/audio_service.cc

Index: extensions/browser/api/audio/audio_service.cc
diff --git a/extensions/browser/api/audio/audio_service.cc b/extensions/browser/api/audio/audio_service.cc
index ec4c7c131da1ee312a79aed35990683b694b1691..a2f266f422d7213f44e3dae2d486145e85c0a2b6 100644
--- a/extensions/browser/api/audio/audio_service.cc
+++ b/extensions/browser/api/audio/audio_service.cc
@@ -18,10 +18,12 @@ class AudioServiceImpl : public AudioService {
   // Start to query audio device information.
   bool GetInfo(OutputInfo* output_info_out, InputInfo* input_info_out) override;
   void SetActiveDevices(const DeviceIdList& device_list) override;
-  bool SetDeviceProperties(const std::string& device_id,
-                           bool muted,
+  bool SetDeviceSoundLevel(const std::string& device_id,
                            int volume,
                            int gain) override;
+  bool SetMuteForDevice(const std::string& device_id, bool value) override;
+  bool SetMute(bool is_input, bool value) override;
+  bool GetMute(bool is_input, bool* value) override;
 };
 
 void AudioServiceImpl::AddObserver(Observer* observer) {
@@ -45,11 +47,23 @@ bool AudioServiceImpl::GetInfo(OutputInfo* output_info_out,
 void AudioServiceImpl::SetActiveDevices(const DeviceIdList& device_list) {
 }
 
-bool AudioServiceImpl::SetDeviceProperties(const std::string& device_id,
-                                           bool muted,
+bool AudioServiceImpl::SetDeviceSoundLevel(const std::string& device_id,
                                            int volume,
                                            int gain) {
   return false;
 }
 
+bool AudioServiceImpl::SetMuteForDevice(const std::string& device_id,
+                                        bool value) {
+  return false;
+}
+
+bool AudioServiceImpl::SetMute(bool is_input, bool value) {
+  return false;
+}
+
+bool AudioServiceImpl::GetMute(bool is_input, bool* value) {
+  return false;
+}
+
 }  // namespace extensions