Start delegating notifications to MessageCenter on Windows.

chrome/browser/browser_process_impl.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.
 
 // When each service is created, we set a flag indicating this. At this point,
 // the service initialization could fail or succeed. This allows us to remember
 // if we tried to create a service, and not try creating it over and over if
 // the creation failed.
 
 #ifndef CHROME_BROWSER_BROWSER_PROCESS_IMPL_H_
@@ skipping 67 matching lines @@
   virtual ProfileManager* profile_manager() OVERRIDE;
   virtual PrefServiceSimple* local_state() OVERRIDE;
   virtual net::URLRequestContextGetter* system_request_context() OVERRIDE;
   virtual chrome_variations::VariationsService* variations_service() OVERRIDE;
 #if defined(OS_CHROMEOS)
   virtual chromeos::OomPriorityManager* oom_priority_manager() OVERRIDE;
 #endif  // defined(OS_CHROMEOS)
   virtual extensions::EventRouterForwarder*
         extension_event_router_forwarder() OVERRIDE;
   virtual NotificationUIManager* notification_ui_manager() OVERRIDE;
+  virtual message_center::MessageCenter* message_center() OVERRIDE;
   virtual policy::BrowserPolicyConnector* browser_policy_connector() OVERRIDE;
   virtual policy::PolicyService* policy_service() OVERRIDE;
   virtual IconManager* icon_manager() OVERRIDE;
   virtual GLStringManager* gl_string_manager() OVERRIDE;
   virtual RenderWidgetSnapshotTaker* GetRenderWidgetSnapshotTaker() OVERRIDE;
   virtual AutomationProviderList* GetAutomationProviderList() OVERRIDE;
   virtual void CreateDevToolsHttpProtocolHandler(
       Profile* profile,
       const std::string& ip,
       int port,
@@ skipping 36 matching lines @@
   void CreateWatchdogThread();
 #if defined(OS_CHROMEOS)
   void InitializeWebSocketProxyThread();
 #endif
   void CreateProfileManager();
   void CreateLocalState();
   void CreateViewedPageTracker();
   void CreateIconManager();
   void CreateIntranetRedirectDetector();
   void CreateNotificationUIManager();
+  void CreateMessageCenter();
   void CreateStatusTrayManager();
   void CreatePrintPreviewDialogController();
   void CreateBackgroundPrintingManager();
   void CreateSafeBrowsingService();
   void CreateSafeBrowsingDetectionService();
   void CreateStatusTray();
   void CreateBackgroundModeManager();
 
   void ApplyDisabledSchemesPolicy();
   void ApplyAllowCrossOriginAuthPromptPolicy();
@@ skipping 45 matching lines @@
       print_preview_dialog_controller_;
 
   scoped_ptr<printing::BackgroundPrintingManager> background_printing_manager_;
 
   scoped_ptr<chrome_variations::VariationsService> variations_service_;
 
   // Manager for desktop notification UI.
   bool created_notification_ui_manager_;
   scoped_ptr<NotificationUIManager> notification_ui_manager_;
 
+  bool created_message_center_;
+#if defined(ENABLE_MESSAGE_CENTER)

[stevenjb, 2013/01/18 19:56:19]

Shouldn't we add && !USE_ASH here?

[Dmitry Titov, 2013/01/18 21:23:00]

Done.
While this instance is created on demand and it should not be demanded in case
of USE_ASH, it's indeed a good point to safeguard here.

+  // MessageCenter keeps currently displayed UI notifications.
+  scoped_ptr<message_center::MessageCenter> message_center_;
+#endif
+
 #if defined(ENABLE_AUTOMATION)
   scoped_ptr<AutomationProviderList> automation_provider_list_;
 #endif
 
   scoped_ptr<IntranetRedirectDetector> intranet_redirect_detector_;
 
   scoped_ptr<StatusTray> status_tray_;
 
   scoped_ptr<BackgroundModeManager> background_mode_manager_;
 
@@ skipping 72 matching lines @@
 #endif
 
   // TODO(eroman): Remove this when done debugging 113031. This tracks
   // the callstack which released the final module reference count.
   base::debug::StackTrace release_last_reference_callstack_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserProcessImpl);
 };
 
 #endif  // CHROME_BROWSER_BROWSER_PROCESS_IMPL_H_