MigrateDeviceVolumeSettings  112 chrome/browser/chromeos/audio/audio_devices_pref_handler_impl.cc     MigrateDeviceVolumeSettings(device_id_str);
MigrateDeviceVolumeSettings   65 chrome/browser/chromeos/audio/audio_devices_pref_handler_impl.h   void MigrateDeviceVolumeSettings(std::string active_device);