RemoveDevicesChangedObserver   54 base/system_monitor/system_monitor.h   void RemoveDevicesChangedObserver(DevicesChangedObserver* obs);
RemoveDevicesChangedObserver   52 chrome/browser/extensions/api/webrtc_audio_private/webrtc_audio_private_api.cc     system_monitor->RemoveDevicesChangedObserver(this);
RemoveDevicesChangedObserver   51 content/browser/gamepad/gamepad_provider.cc     monitor->RemoveDevicesChangedObserver(this);
RemoveDevicesChangedObserver  845 content/browser/renderer_host/media/media_stream_manager.cc     base::SystemMonitor::Get()->RemoveDevicesChangedObserver(this);