Store audio device's active state in preference

chromeos/audio/audio_devices_pref_handler_stub.cc

Index: chromeos/audio/audio_devices_pref_handler_stub.cc
diff --git a/chromeos/audio/audio_devices_pref_handler_stub.cc b/chromeos/audio/audio_devices_pref_handler_stub.cc
index 6c59877400083d3e808416d11ab286e4b352b819..21c2fe1d4a268a922de4875c563954e489647131 100644
--- a/chromeos/audio/audio_devices_pref_handler_stub.cc
+++ b/chromeos/audio/audio_devices_pref_handler_stub.cc
@@ -17,32 +17,47 @@ AudioDevicesPrefHandlerStub::~AudioDevicesPrefHandlerStub() {
 
 double AudioDevicesPrefHandlerStub::GetOutputVolumeValue(
     const AudioDevice* device) {
-  if (!device || !ContainsKey(audio_device_volume_gain_map_, device->id))
+  if (!device ||
+      !ContainsKey(audio_device_volume_gain_map_, device->stable_device_id))
     return kDefaultOutputVolumePercent;
-  return audio_device_volume_gain_map_[device->id];
+  return audio_device_volume_gain_map_[device->stable_device_id];
 }
 
 double AudioDevicesPrefHandlerStub::GetInputGainValue(
     const AudioDevice* device) {
   // TODO(rkc): The default value for gain is wrong. http://crbug.com/442489
-  if (!device || !ContainsKey(audio_device_volume_gain_map_, device->id))
+  if (!device ||
+      !ContainsKey(audio_device_volume_gain_map_, device->stable_device_id))
     return 75.0;
-  return audio_device_volume_gain_map_[device->id];
+  return audio_device_volume_gain_map_[device->stable_device_id];
 }
 
 void AudioDevicesPrefHandlerStub::SetVolumeGainValue(const AudioDevice& device,
                                                      double value) {
-  audio_device_volume_gain_map_[device.id] = value;
+  audio_device_volume_gain_map_[device.stable_device_id] = value;
 }
 
 bool AudioDevicesPrefHandlerStub::GetMuteValue(
     const AudioDevice& device) {
-  return audio_device_mute_map_[device.id];
+  return audio_device_mute_map_[device.stable_device_id];
 }
 
 void AudioDevicesPrefHandlerStub::SetMuteValue(const AudioDevice& device,
                                                bool mute_on) {
-  audio_device_mute_map_[device.id] = mute_on;
+  audio_device_mute_map_[device.stable_device_id] = mute_on;
+}
+
+AudioDeviceState AudioDevicesPrefHandlerStub::GetDeviceState(
+    const AudioDevice& device) {
+  if (audio_device_state_map_.find(device.stable_device_id) ==
+      audio_device_state_map_.end())
+    return AUDIO_STATE_NOT_AVAILABLE;
+  return audio_device_state_map_[device.stable_device_id];
+}
+
+void AudioDevicesPrefHandlerStub::SetDeviceState(const AudioDevice& device,
+                                                 AudioDeviceState state) {
+  audio_device_state_map_[device.stable_device_id] = state;
 }
 
 bool AudioDevicesPrefHandlerStub::GetAudioOutputAllowedValue() {