[cros] Cleanup: remove LoginUtils

chrome/browser/chromeos/login/fake_login_utils.h

-// Copyright 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.
-
-#ifndef CHROME_BROWSER_CHROMEOS_LOGIN_FAKE_LOGIN_UTILS_H_
-#define CHROME_BROWSER_CHROMEOS_LOGIN_FAKE_LOGIN_UTILS_H_
-
-#include "chrome/browser/chromeos/login/login_utils.h"
-#include "chromeos/login/auth/user_context.h"
-
-namespace chromeos {
-
-// This class emulates behavior of LoginUtils for browser tests.
-// It provides:
-//  * Fake authentication. You can configure expected usernames and password for
-//    next auth attempt.
-//  * Preparing of profiles for authenticated users.
-//  * Launching browser for user, if |should_launch_browser_| set.
-//  * Correct communication with LoginDisplayHost and UserManager.
-class FakeLoginUtils : public LoginUtils {
- public:
-  FakeLoginUtils();
-  ~FakeLoginUtils() override;
-  void DoBrowserLaunch(Profile* profile, LoginDisplayHost* login_host) override;
-  void PrepareProfile(const UserContext& user_context,
-                      bool has_cookies,
-                      bool has_active_session,
-                      LoginUtils::Delegate* delegate) override;
-  void DelegateDeleted(LoginUtils::Delegate* delegate) override;
-  scoped_refptr<Authenticator> CreateAuthenticator(
-      AuthStatusConsumer* consumer) override;
-
-  void SetExpectedCredentials(const UserContext& user_context);
-  void set_should_launch_browser(bool should_launch_browser) {
-    should_launch_browser_ = should_launch_browser;
-  }
-
- private:
-  scoped_refptr<Authenticator> authenticator_;
-  UserContext expected_user_context_;
-  bool should_launch_browser_;
-
-  DISALLOW_COPY_AND_ASSIGN(FakeLoginUtils);
-};
-
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_FAKE_LOGIN_UTILS_H_