Revert "chromeos: Move files in //ash/common to //ash, part 2"

ash/test/test_system_tray_delegate.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 ASH_TEST_TEST_SYSTEM_TRAY_DELEGATE_H_
-#define ASH_TEST_TEST_SYSTEM_TRAY_DELEGATE_H_
-
-#include "ash/system/tray/default_system_tray_delegate.h"
-#include "ash/system/tray/ime_info.h"
-#include "base/macros.h"
-#include "base/time/time.h"
-
-namespace ash {
-namespace test {
-
-class TestSystemTrayDelegate : public DefaultSystemTrayDelegate {
- public:
-  TestSystemTrayDelegate();
-  ~TestSystemTrayDelegate() override;
-
-  // Changes the current login status in the test. This also invokes
-  // UpdateAfterLoginStatusChange(). Usually this is called in the test code to
-  // set up a login status. This will fit to most of the test cases, but this
-  // cannot be set during the initialization. To test the initialization,
-  // consider using SetInitialLoginStatus() instead.
-  void SetLoginStatus(LoginStatus login_status);
-
-  // Updates the session length limit so that the limit will come from now in
-  // |new_limit|.
-  void SetSessionLengthLimitForTest(const base::TimeDelta& new_limit);
-
-  // Clears the session length limit.
-  void ClearSessionLengthLimit();
-
-  // Sets the IME info.
-  void SetCurrentIME(const IMEInfo& info);
-
-  // Sets the list of available IMEs.
-  void SetAvailableIMEList(const IMEInfoList& list);
-
-  // Overridden from SystemTrayDelegate:
-  LoginStatus GetUserLoginStatus() const override;
-  bool IsUserSupervised() const override;
-  bool GetSessionStartTime(base::TimeTicks* session_start_time) override;
-  bool GetSessionLengthLimit(base::TimeDelta* session_length_limit) override;
-  void GetCurrentIME(IMEInfo* info) override;
-  void GetAvailableIMEList(IMEInfoList* list) override;
-
- private:
-  LoginStatus login_status_;
-  base::TimeDelta session_length_limit_;
-  bool session_length_limit_set_;
-  IMEInfo current_ime_;
-  IMEInfoList ime_list_;
-
-  DISALLOW_COPY_AND_ASSIGN(TestSystemTrayDelegate);
-};
-
-// Changes the initial login status before TestSystemTrayDelegate is created.
-// Allows testing the case when chrome is restarted right after login (such as
-// when a flag is set).
-class ScopedInitialLoginStatus {
- public:
-  explicit ScopedInitialLoginStatus(LoginStatus status);
-  ~ScopedInitialLoginStatus();
-
- private:
-  LoginStatus old_status_;
-
-  DISALLOW_COPY_AND_ASSIGN(ScopedInitialLoginStatus);
-};
-
-}  // namespace test
-}  // namespace ash
-
-#endif  // ASH_TEST_TEST_SYSTEM_TRAY_DELEGATE_H_