Revert of Revert of ChromeOS NetworkScreenHandler should not call CheckAndResolveLocale on UI thread. (patchs…

chrome/browser/chromeos/chrome_browser_main_chromeos.cc

 // Copyright (c) 2013 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/chromeos/chrome_browser_main_chromeos.h"
 
 #include <string>
 #include <vector>
 
 #include "ash/ash_switches.h"
@@ skipping 434 matching lines @@
   }
 }
 
 class GuestLanguageSetCallbackData {
  public:
   explicit GuestLanguageSetCallbackData(Profile* profile) : profile(profile) {
   }
 
   // Must match SwitchLanguageCallback type.
   static void Callback(const scoped_ptr<GuestLanguageSetCallbackData>& self,
-                       const std::string& locale,
-                       const std::string& loaded_locale,
-                       bool success);
+                       const locale_util::LanguageSwitchResult& result);
 
   Profile* profile;
 };
 
 // static
 void GuestLanguageSetCallbackData::Callback(
     const scoped_ptr<GuestLanguageSetCallbackData>& self,
-    const std::string& locale,
-    const std::string& loaded_locale,
-    bool success) {
+    const locale_util::LanguageSwitchResult& result) {
   input_method::InputMethodManager* manager =
       input_method::InputMethodManager::Get();
   scoped_refptr<input_method::InputMethodManager::State> ime_state =
       manager->GetActiveIMEState();
   // Active layout must be hardware "login layout".
   // The previous one must be "locale default layout".
   // First, enable all hardware input methods.
   const std::vector<std::string>& input_methods =
       manager->GetInputMethodUtil()->GetHardwareInputMethodIds();
   for (size_t i = 0; i < input_methods.size(); ++i)
     ime_state->EnableInputMethod(input_methods[i]);
 
   // Second, enable locale based input methods.
   const std::string locale_default_input_method =
       manager->GetInputMethodUtil()->GetLanguageDefaultInputMethodId(
-          loaded_locale);
+          result.loaded_locale);
   if (!locale_default_input_method.empty()) {
     PrefService* user_prefs = self->profile->GetPrefs();
     user_prefs->SetString(prefs::kLanguagePreviousInputMethod,
                           locale_default_input_method);
     ime_state->EnableInputMethod(locale_default_input_method);
   }
 
   // Finally, activate the first login input method.
   const std::vector<std::string>& login_input_methods =
       manager->GetInputMethodUtil()->GetHardwareLoginInputMethodIds();
   ime_state->ChangeInputMethod(login_input_methods[0],
                                false /* show_message */);
 }
 
 void SetGuestLocale(Profile* const profile) {
   scoped_ptr<GuestLanguageSetCallbackData> data(
       new GuestLanguageSetCallbackData(profile));
-  scoped_ptr<locale_util::SwitchLanguageCallback> callback(
-      new locale_util::SwitchLanguageCallback(base::Bind(
-          &GuestLanguageSetCallbackData::Callback, base::Passed(data.Pass()))));
+  locale_util::SwitchLanguageCallback callback(base::Bind(
+      &GuestLanguageSetCallbackData::Callback, base::Passed(data.Pass())));
   user_manager::User* const user =
       ProfileHelper::Get()->GetUserByProfile(profile);
   UserSessionManager::GetInstance()->RespectLocalePreference(
-      profile, user, callback.Pass());
+      profile, user, callback);
 }
 
 void ChromeBrowserMainPartsChromeos::PostProfileInit() {
   // -- This used to be in ChromeBrowserMainParts::PreMainMessageLoopRun()
   // -- just after CreateProfile().
 
   BootTimesLoader::Get()->OnChromeProcessStart();
 
   // Initialize the network portal detector for Chrome OS. The network
   // portal detector starts to listen for notifications from
@@ skipping 248 matching lines @@
   // Destroy DBus services immediately after threads are stopped.
   dbus_services_.reset();
 
   ChromeBrowserMainPartsLinux::PostDestroyThreads();
 
   // Destroy DeviceSettingsService after g_browser_process.
   DeviceSettingsService::Shutdown();
 }
 
 }  //  namespace chromeos