#ifndef CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_DISPLAY_SERVICE_H_
#define CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_DISPLAY_SERVICE_H_
#include <map>
#include <memory>
#include <set>
#include <string>
#include "base/functional/callback_forward.h"
#include "base/observer_list_types.h"
#include "chrome/browser/notifications/notification_common.h"
#include "chrome/browser/notifications/notification_handler.h"
#include "components/keyed_service/core/keyed_service.h"
class Profile;
namespace message_center {
class Notification;
}
class NotificationDisplayService : public KeyedService { … };
#endif