Remove retail mode.

components/user_manager/user.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 COMPONENTS_USER_MANAGER_USER_H_
 #define COMPONENTS_USER_MANAGER_USER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 161 matching lines @@
   friend class chromeos::MockUserManager;
   friend class chromeos::FakeLoginUtils;
   friend class chromeos::FakeUserManager;
   friend class chromeos::UserAddingScreenTest;
 
   // Do not allow anyone else to create new User instances.
   static User* CreateRegularUser(const std::string& email);
   static User* CreateGuestUser();
   static User* CreateKioskAppUser(const std::string& kiosk_app_username);
   static User* CreateSupervisedUser(const std::string& username);
-  static User* CreateRetailModeUser();
   static User* CreatePublicAccountUser(const std::string& email);
 
   explicit User(const std::string& email);
   ~User() override;
 
   const std::string* GetAccountLocale() const { return account_locale_.get(); }
 
   // Setters are private so only UserManager can call them.
   void SetAccountLocale(const std::string& resolved_account_locale);
 
@@ skipping 88 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(User);
 };
 
 // List of known users.
 typedef std::vector<User*> UserList;
 
 }  // namespace user_manager
 
 #endif  // COMPONENTS_USER_MANAGER_USER_H_