user_manager component: Add UserManagerBase class.

chrome/browser/chromeos/login/users/mock_user_manager.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_USERS_MOCK_USER_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_USERS_MOCK_USER_MANAGER_H_
 
 #include <string>
 
 #include "base/files/file_path.h"
@@ skipping 60 matching lines @@
                void(UserManager::UserSessionStateObserver*));
   MOCK_METHOD1(RemoveSessionStateObserver,
                void(UserManager::UserSessionStateObserver*));
   MOCK_METHOD0(NotifyLocalStateChanged, void(void));
   MOCK_METHOD2(SetUserFlow, void(const std::string&, UserFlow*));
   MOCK_METHOD1(ResetUserFlow, void(const std::string&));
 
   MOCK_CONST_METHOD0(AreSupervisedUsersAllowed, bool(void));
 
   // You can't mock these functions easily because nobody can create
-  // User objects but the UserManagerImpl and us.
+  // User objects but the ChromeUserManager and us.
   virtual const user_manager::UserList& GetUsers() const OVERRIDE;
   virtual const user_manager::User* GetLoggedInUser() const OVERRIDE;
   virtual user_manager::UserList GetUnlockUsers() const OVERRIDE;
-  virtual const std::string& GetOwnerEmail() OVERRIDE;
+  virtual const std::string& GetOwnerEmail() const OVERRIDE;
   virtual user_manager::User* GetLoggedInUser() OVERRIDE;
   virtual const user_manager::User* GetActiveUser() const OVERRIDE;
   virtual user_manager::User* GetActiveUser() OVERRIDE;
   virtual const user_manager::User* GetPrimaryUser() const OVERRIDE;
 
   virtual MultiProfileUserController* GetMultiProfileUserController() OVERRIDE;
   virtual UserImageManager* GetUserImageManager(
       const std::string& user_id) OVERRIDE;
   virtual SupervisedUserManager* GetSupervisedUserManager() OVERRIDE;
 
@@ skipping 18 matching lines @@
 
   scoped_ptr<UserFlow> user_flow_;
   scoped_ptr<MockUserImageManager> user_image_manager_;
   scoped_ptr<FakeSupervisedUserManager> supervised_user_manager_;
   user_manager::UserList user_list_;
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USERS_MOCK_USER_MANAGER_H_