Move Chrome terminating notification out of //apps

apps/app_restore_service.h

 // 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.
 
 #ifndef APPS_APP_RESTORE_SERVICE_H_
 #define APPS_APP_RESTORE_SERVICE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 20 matching lines @@
   explicit AppRestoreService(Profile* profile);
 
   // Restart apps that need to be restarted and clear the "running" preference
   // from apps to prevent them being restarted in subsequent restarts.
   void HandleStartup(bool should_restore_apps);
 
   // Returns whether this extension is running or, at startup, whether it was
   // running when Chrome was last terminated.
   bool IsAppRestorable(const std::string& extension_id);
 
+  // Called to notify that the application has begun to exit.
+  void OnApplicationTerminating();
+
   static AppRestoreService* Get(Profile* profile);
 
  private:
   // AppLifetimeMonitor::Observer.
   void OnAppStart(Profile* profile, const std::string& app_id) override;
   void OnAppActivated(Profile* profile, const std::string& app_id) override;
   void OnAppDeactivated(Profile* profile, const std::string& app_id) override;
   void OnAppStop(Profile* profile, const std::string& app_id) override;
-  void OnChromeTerminating() override;
 
   // KeyedService.
   void Shutdown() override;
 
   void RecordAppStart(const std::string& extension_id);
   void RecordAppStop(const std::string& extension_id);
   void RecordAppActiveState(const std::string& id, bool is_active);
 
   void RestoreApp(const extensions::Extension* extension);
 
   void StartObservingAppLifetime();
   void StopObservingAppLifetime();
 
   Profile* profile_;
 
   DISALLOW_COPY_AND_ASSIGN(AppRestoreService);
 };
 
 }  // namespace apps
 
 #endif  // APPS_APP_RESTORE_SERVICE_H_