Cleanup: Only include background_mode_manager.h when ENABLE_BACKGROUND is defined.

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 204 matching lines @@
 #endif
 
   // Manager for desktop notification UI.
   bool created_notification_ui_manager_;
   scoped_ptr<NotificationUIManager> notification_ui_manager_;
 
   scoped_ptr<IntranetRedirectDetector> intranet_redirect_detector_;
 
   scoped_ptr<StatusTray> status_tray_;
 
+#if defined(ENABLE_BACKGROUND)
   scoped_ptr<BackgroundModeManager> background_mode_manager_;
+#endif
 
   bool created_safe_browsing_service_;
   scoped_refptr<SafeBrowsingService> safe_browsing_service_;
 
   unsigned int module_ref_count_;
   bool did_start_;
 
   // Ensures that all the print jobs are finished before closing the browser.
   scoped_ptr<printing::PrintJobManager> print_job_manager_;
 
@@ skipping 66 matching lines @@
   scoped_ptr<gcm::GCMDriver> gcm_driver_;
 
 #if !defined(OS_ANDROID)
   scoped_ptr<ChromeDeviceClient> device_client_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(BrowserProcessImpl);
 };
 
 #endif  // CHROME_BROWSER_BROWSER_PROCESS_IMPL_H_