show notification on locale change

chrome/browser/profiles/profile_impl.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/profiles/profile_impl.h"
 
 #include "app/resource_bundle.h"
 #include "base/command_line.h"
 #include "base/environment.h"
 #include "base/file_path.h"
@@ skipping 1322 matching lines @@
     }
   }
   */
   return instant_promo_counter_.get();
 #else
   return NULL;
 #endif
 }
 
 #if defined(OS_CHROMEOS)
+void ProfileImpl::ChangeApplicationLocale(
+    const std::string& locale, bool keep_local) {
+  if (locale.empty()) {
+    NOTREACHED();
+    return;
+  }
+  if (keep_local) {
+    GetPrefs()->SetString(prefs::kApplicationLocaleOverride, locale);
+  } else {
+    GetPrefs()->SetString(prefs::kApplicationLocale, locale);
+    GetPrefs()->SetString(prefs::kApplicationLocaleOverride, "");
+  }
+  GetPrefs()->SetString(prefs::kApplicationLocaleBackup, locale);
+  GetPrefs()->ClearPref(prefs::kApplicationLocaleAccepted);
+  // We maintain kApplicationLocale property in both a global storage
+  // and user's profile.  Global property determines locale of login screen,
+  // while user's profile determines his personal locale preference.
+  g_browser_process->local_state()->SetString(
+      prefs::kApplicationLocale, locale);
+
+  GetPrefs()->SavePersistentPrefs();
+  g_browser_process->local_state()->SavePersistentPrefs();
+}
+
 chromeos::ProxyConfigServiceImpl*
     ProfileImpl::GetChromeOSProxyConfigServiceImpl() {
   if (!chromeos_proxy_config_service_impl_) {
     chromeos_proxy_config_service_impl_ =
         new chromeos::ProxyConfigServiceImpl();
   }
   return chromeos_proxy_config_service_impl_;
 }
 
 void ProfileImpl::SetupChromeOSEnterpriseExtensionObserver() {
@@ skipping 11 matching lines @@
 }
 
 PrerenderManager* ProfileImpl::GetPrerenderManager() {
   CommandLine* cl = CommandLine::ForCurrentProcess();
   if (!cl->HasSwitch(switches::kEnablePagePrerender))
     return NULL;
   if (!prerender_manager_)
     prerender_manager_ = new PrerenderManager(this);
   return prerender_manager_;
 }