Allow recommended locales to be set for public sessions

chrome/browser/chromeos/login/screens/user_selection_screen.h

 // Copyright 2014 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_USER_SELECTION_SCREEN_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_USER_SELECTION_SCREEN_H_
 
 #include <map>
 #include <string>
+#include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/timer/timer.h"
 #include "base/values.h"
 #include "chrome/browser/signin/screenlock_bridge.h"
 #include "components/user_manager/user.h"
 #include "ui/wm/core/user_activity_observer.h"
 
 namespace chromeos {
 
@@ skipping 28 matching lines @@
 
   // wm::UserActivityDetector implementation:
   virtual void OnUserActivity(const ui::Event* event) OVERRIDE;
 
   // Fills |user_dict| with information about |user|.
   static void FillUserDictionary(
       user_manager::User* user,
       bool is_owner,
       bool is_signin_to_add,
       ScreenlockBridge::LockHandler::AuthType auth_type,
+      const std::vector<std::string>* public_session_recommended_locales,
       base::DictionaryValue* user_dict);
 
   // Determines if user auth status requires online sign in.
   static bool ShouldForceOnlineSignIn(const user_manager::User* user);
 
  protected:
   LoginDisplayWebUIHandler* handler_;
 
   // Set of Users that are visible.
   user_manager::UserList users_;
 
+  // Map from public session user IDs to recommended locales set by policy.
+  typedef std::map<std::string, std::vector<std::string> >
+      PublicSessionRecommendedLocaleMap;
+  PublicSessionRecommendedLocaleMap public_session_recommended_locales_;
+
  private:
   // Whether to show guest login.
   bool show_guest_;
 
   // Map of usernames to their current authentication type. If a user is not
   // contained in the map, it is using the default authentication type.
   std::map<std::string, ScreenlockBridge::LockHandler::AuthType>
       user_auth_type_map_;
 
   // Timer for measuring idle state duration before password clear.
   base::OneShotTimer<UserSelectionScreen> password_clear_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(UserSelectionScreen);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_USER_SELECTION_SCREEN_H_