Do not use local override for language settings: always sync.

chrome/browser/dom_ui/options/language_options_handler.cc

 // Copyright (c) 2011 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.
 
 #include "chrome/browser/dom_ui/options/language_options_handler.h"
 
 #include <map>
 #include <set>
 #include <string>
 #include <utility>
@@ skipping 365 matching lines @@
 }
 
 void LanguageOptionsHandler::UiLanguageChangeCallback(
     const ListValue* args) {
   const std::string language_code = WideToASCII(ExtractStringValue(args));
   CHECK(!language_code.empty());
   const std::string action = StringPrintf(
       "LanguageOptions_UiLanguageChange_%s", language_code.c_str());
   UserMetrics::RecordComputedAction(action);
 #if defined(OS_CHROMEOS)
-  dom_ui_->GetProfile()->ChangeApplicationLocale(language_code, false);
+  dom_ui_->GetProfile()->ChangeAppLocale(
+      language_code, Profile::APP_LOCALE_CHANGED_VIA_SETTINGS);
 #else
   PrefService* pref_service = g_browser_process->local_state();
   pref_service->SetString(prefs::kApplicationLocale, language_code);
 #endif  // defined(OS_CHROMEOS)
   dom_ui_->CallJavascriptFunction(
       L"options.LanguageOptions.uiLanguageSaved");
 }
 
 void LanguageOptionsHandler::SpellCheckLanguageChangeCallback(
     const ListValue* args) {
@@ skipping 15 matching lines @@
 #else
   UserMetrics::RecordAction(UserMetricsAction("LanguageOptions_Restart"));
 
   // Set the flag to restore state after the restart.
   PrefService* pref_service = g_browser_process->local_state();
   pref_service->SetBoolean(prefs::kRestartLastSessionOnShutdown, true);
   BrowserList::CloseAllBrowsersAndExit();
 #endif  // defined(OS_CHROMEOS)
 }