chromium/chrome/browser/new_tab_page/promos/promo_service_observer.h

// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_BROWSER_NEW_TAB_PAGE_PROMOS_PROMO_SERVICE_OBSERVER_H_
#define CHROME_BROWSER_NEW_TAB_PAGE_PROMOS_PROMO_SERVICE_OBSERVER_H_

// Observer for PromoService.
class PromoServiceObserver { … };

#endif  // CHROME_BROWSER_NEW_TAB_PAGE_PROMOS_PROMO_SERVICE_OBSERVER_H_