#ifndef CHROME_BROWSER_UI_GLOBAL_MEDIA_CONTROLS_MEDIA_NOTIFICATION_DEVICE_PROVIDER_IMPL_H_
#define CHROME_BROWSER_UI_GLOBAL_MEDIA_CONTROLS_MEDIA_NOTIFICATION_DEVICE_PROVIDER_IMPL_H_
#include "base/memory/weak_ptr.h"
#include "chrome/browser/ui/global_media_controls/media_notification_device_monitor.h"
#include "chrome/browser/ui/global_media_controls/media_notification_device_provider.h"
#include "media/audio/audio_device_description.h"
class MediaNotificationDeviceProviderImpl
: public MediaNotificationDeviceProvider,
public MediaNotificationDeviceMonitor::DevicesChangedObserver { … };
#endif