Beginnings of synchronizing notifications in the notification database.

chrome/browser/notifications/notification_ui_manager_desktop.cc

 // Copyright 2014 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/notifications/notification_ui_manager.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/notifications/message_center_notification_manager.h"
 #include "chrome/browser/notifications/message_center_settings_controller.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_info_cache.h"
 #include "chrome/browser/profiles/profile_manager.h"
 
 // static
 NotificationUIManager* NotificationUIManager::Create(PrefService* local_state) {
+  ProfileManager* profile_manager = g_browser_process->profile_manager();
+  if (!profile_manager)
+    return nullptr;
+
   ProfileInfoCache* profile_info_cache =
-      &g_browser_process->profile_manager()->GetProfileInfoCache();
+      &profile_manager->GetProfileInfoCache();
   scoped_ptr<message_center::NotifierSettingsProvider> settings_provider(
       new MessageCenterSettingsController(profile_info_cache));
   return new MessageCenterNotificationManager(
       g_browser_process->message_center(),
       local_state,
       settings_provider.Pass());
 }