| // Copyright 2020 The Chromium Authors | 
 | // Use of this source code is governed by a BSD-style license that can be | 
 | // found in the LICENSE file. | 
 |  | 
 | #include "chrome/browser/notifications/notification_blocker.h" | 
 |  | 
 | #include "base/observer_list.h" | 
 |  | 
 | NotificationBlocker::NotificationBlocker() = default; | 
 |  | 
 | NotificationBlocker::~NotificationBlocker() = default; | 
 |  | 
 | void NotificationBlocker::NotifyBlockingStateChanged() { | 
 |   for (auto& observer : observers_) | 
 |     observer.OnBlockingStateChanged(); | 
 | } | 
 |  | 
 | void NotificationBlocker::AddObserver(Observer* observer) { | 
 |   observers_.AddObserver(observer); | 
 | } | 
 |  | 
 | void NotificationBlocker::RemoveObserver(Observer* observer) { | 
 |   observers_.RemoveObserver(observer); | 
 | } |