Removed NOTIFICATION_BROWSER_CLOSING notification

chrome/browser/ui/unload_controller.cc

 // Copyright (c) 2012 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 "chrome/browser/ui/unload_controller.h"
 
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/devtools/devtools_window.h"
 #include "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "extensions/features/features.h"
 
 #if BUILDFLAG(ENABLE_EXTENSIONS)
@@ skipping 192 matching lines @@
     DevToolsWindow::OnPageCloseCanceled(*it);
   }
   tabs_needing_unload_fired_.clear();
   if (is_calling_before_unload_handlers()) {
     base::Callback<void(bool)> on_close_confirmed = on_close_confirmed_;
     on_close_confirmed_.Reset();
     on_close_confirmed.Run(false);
   }
   is_attempting_to_close_browser_ = false;
 
+  BrowserList::NotifyBrowserCloseCancelled(browser_);
+
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_BROWSER_CLOSE_CANCELLED,
       content::Source<Browser>(browser_),

[sky, 2017/03/31 14:23:41]

Is it possible to remove this notification now?

[Alexey Seren, 2017/04/02 12:02:35]

This notification is used in several places in chrome. Should I do it in
separate task?

       content::NotificationService::NoDetails());
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // UnloadController, content::NotificationObserver implementation:
 
 void UnloadController::Observe(int type,
                                const content::NotificationSource& source,
                                const content::NotificationDetails& details) {
   DCHECK_EQ(content::NOTIFICATION_WEB_CONTENTS_DISCONNECTED, type);
@@ skipping 156 matching lines @@
       if (weak_factory_.HasWeakPtrs())
         return;
       base::ThreadTaskRunnerHandle::Get()->PostTask(
           FROM_HERE, base::Bind(&UnloadController::ProcessPendingTabs,
                                 weak_factory_.GetWeakPtr(), false));
     }
   }
 }
 
 }  // namespace chrome