Start delegating notifications to MessageCenter on Windows.

chrome/browser/browser_process.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.
 
 // This interface is for managing the global services of the application. Each
 // service is lazily created when requested the first time. The service getters
 // will return NULL if the service is not available, so callers must check for
 // this condition.
 
 #ifndef CHROME_BROWSER_BROWSER_PROCESS_H_
@@ skipping 37 matching lines @@
 #endif  // defined(OS_CHROMEOS)
 
 namespace chrome_variations {
 class VariationsService;
 }
 
 namespace extensions {
 class EventRouterForwarder;
 }
 
+namespace message_center {
+class MessageCenter;
+}
+
 namespace net {
 class URLRequestContextGetter;
 }
 
 namespace policy {
 class BrowserPolicyConnector;
 class PolicyService;
 }
 
 namespace prerender {
@@ skipping 37 matching lines @@
   // Returns the out-of-memory priority manager.
   virtual chromeos::OomPriorityManager* oom_priority_manager() = 0;
 #endif  // defined(OS_CHROMEOS)
 
   virtual extensions::EventRouterForwarder*
       extension_event_router_forwarder() = 0;
 
   // Returns the manager for desktop notifications.
   virtual NotificationUIManager* notification_ui_manager() = 0;
 
+  // MessageCenter is a global list of currently displayed notifications.
+  virtual message_center::MessageCenter* message_center() = 0;

[sky, 2013/01/22 19:29:00]

Should this be in a defined(ENABLE_MESSAGE_CENTER) ? Same with 58-61?

[Dmitry Titov, 2013/01/22 21:01:07]

Done. Also !(USE_ASH)

+
   // Returns the state object for the thread that we perform I/O
   // coordination on (network requests, communication with renderers,
   // etc.
   //
   // Can be NULL close to startup and shutdown.
   //
   // NOTE: If you want to post a task to the IO thread, use
   // BrowserThread::PostTask (or other variants).
   virtual IOThread* io_thread() = 0;
 
@@ skipping 83 matching lines @@
   virtual void PlatformSpecificCommandLineProcessing(
       const CommandLine& command_line) = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(BrowserProcess);
 };
 
 extern BrowserProcess* g_browser_process;
 
 #endif  // CHROME_BROWSER_BROWSER_PROCESS_H_