| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "ios/chrome/browser/tab_parenting_global_observer.h" |
| |
| #include "base/memory/singleton.h" |
| |
| TabParentingGlobalObserver* TabParentingGlobalObserver::GetInstance() { |
| return base::Singleton<TabParentingGlobalObserver>::get(); |
| } |
| |
| std::unique_ptr<base::CallbackList<void(web::WebState*)>::Subscription> |
| TabParentingGlobalObserver::RegisterCallback(const OnTabParentedCallback& cb) { |
| return on_tab_parented_callback_list_.Add(cb); |
| } |
| |
| void TabParentingGlobalObserver::OnTabParented(web::WebState* web_state) { |
| on_tab_parented_callback_list_.Notify(web_state); |
| } |
| |
| TabParentingGlobalObserver::TabParentingGlobalObserver() {} |
| |
| TabParentingGlobalObserver::~TabParentingGlobalObserver() {} |