Revert 199625 "Remove ENABLE_MESSAGE_CENTER"

trunk/src/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 36 matching lines @@
 }
 
 namespace chrome_variations {
 class VariationsService;
 }
 
 namespace extensions {
 class EventRouterForwarder;
 }
 
+#if defined(ENABLE_MESSAGE_CENTER)
 namespace message_center {
 class MessageCenter;
 }
+#endif
 
 namespace net {
 class URLRequestContextGetter;
 }
 
 namespace policy {
 class BrowserPolicyConnector;
 class PolicyService;
 }
 
@@ skipping 35 matching lines @@
   virtual chrome_variations::VariationsService* variations_service() = 0;
 
   virtual BrowserProcessPlatformPart* platform_part() = 0;
 
   virtual extensions::EventRouterForwarder*
       extension_event_router_forwarder() = 0;
 
   // Returns the manager for desktop notifications.
   virtual NotificationUIManager* notification_ui_manager() = 0;
 
+#if defined(ENABLE_MESSAGE_CENTER)
   // MessageCenter is a global list of currently displayed notifications.
   virtual message_center::MessageCenter* message_center() = 0;
+#endif
 
   // 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 96 matching lines @@
   virtual void OnMetroViewerProcessTerminated() = 0;
 #endif
 
  private:
   DISALLOW_COPY_AND_ASSIGN(BrowserProcess);
 };
 
 extern BrowserProcess* g_browser_process;
 
 #endif  // CHROME_BROWSER_BROWSER_PROCESS_H_