kiosk: Fix kiosk session restart

chrome/browser/chromeos/login/users/fake_chrome_user_manager.h

 // Copyright 2015 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_FAKE_CHROME_USER_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_USERS_FAKE_CHROME_USER_MANAGER_H_
 
 #include <map>
 #include <memory>
 #include <string>
@@ skipping 12 matching lines @@
 
 // Fake chrome user manager with a barebones implementation. Users can be added
 // and set as logged in, and those users can be returned.
 class FakeChromeUserManager : public user_manager::FakeUserManager,
                               public UserManagerInterface {
  public:
   FakeChromeUserManager();
   ~FakeChromeUserManager() override;
 
   // Create and add a kiosk app user.
-  void AddKioskAppUser(const AccountId& kiosk_app_account_id);
+  user_manager::User* AddKioskAppUser(const AccountId& account_id);
 
   // Create and add a public account user.
   const user_manager::User* AddPublicAccountUser(const AccountId& account_id);
 
   // Calculates the user name hash and calls UserLoggedIn to login a user.
   void LoginUser(const AccountId& account_id);
 
   // UserManager overrides.
   user_manager::UserList GetUsersAllowedForMultiProfile() const override;
 
@@ skipping 70 matching lines @@
   // Specific flows by user e-mail.
   // Keys should be canonicalized before access.
   FlowMap specific_flows_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeChromeUserManager);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USERS_FAKE_CHROME_USER_MANAGER_H_