[WIP]Implement Chromium side changes for navigator.language(s) support for workers.

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 144 matching lines @@
   void CreateBackgroundPrintingManager();
   void CreateSafeBrowsingService();
   void CreateSafeBrowsingDetectionService();
   void CreateStatusTray();
   void CreateBackgroundModeManager();
   void CreateGCMDriver();
 
   void ApplyAllowCrossOriginAuthPromptPolicy();
   void ApplyDefaultBrowserPolicy();
   void ApplyMetricsReportingPolicy();
+  void OnLanguagesChange();
 
   scoped_ptr<MetricsServicesManager> metrics_services_manager_;
 
   scoped_ptr<IOThread> io_thread_;
 
   bool created_watchdog_thread_;
   scoped_ptr<WatchDogThread> watchdog_thread_;
 
   bool created_browser_policy_connector_;
 #if defined(ENABLE_CONFIGURATION_POLICY)
@@ skipping 66 matching lines @@
   scoped_ptr<DownloadStatusUpdater> download_status_updater_;
 
   scoped_refptr<DownloadRequestLimiter> download_request_limiter_;
 
   // Sequenced task runner for local state related I/O tasks.
   const scoped_refptr<base::SequencedTaskRunner> local_state_task_runner_;
 
   // Ensures that the observers of plugin/print disable/enable state
   // notifications are properly added and removed.
   PrefChangeRegistrar pref_change_registrar_;
+  PrefChangeRegistrar local_pref_change_registrar_;
 
   // Lives here so can safely log events on shutdown.
   scoped_ptr<ChromeNetLog> net_log_;
 
   // Ordered before resource_dispatcher_host_delegate_ due to destruction
   // ordering.
   scoped_ptr<prerender::PrerenderTracker> prerender_tracker_;
 
   scoped_ptr<ChromeResourceDispatcherHostDelegate>
       resource_dispatcher_host_delegate_;
@@ skipping 41 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_