More pre-MD cleanup

ash/common/system/date/tray_date.h

Index: ash/common/system/date/tray_date.h
diff --git a/ash/common/system/date/tray_date.h b/ash/common/system/date/tray_date.h
deleted file mode 100644
index bf25e617d664215d13204e01b3d032189d827a3d..0000000000000000000000000000000000000000
--- a/ash/common/system/date/tray_date.h
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2012 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_COMMON_SYSTEM_DATE_TRAY_DATE_H_
-#define ASH_COMMON_SYSTEM_DATE_TRAY_DATE_H_
-
-#include <memory>
-
-#include "ash/ash_export.h"
-#include "ash/common/login_status.h"
-#include "ash/common/system/date/clock_observer.h"
-#include "ash/common/system/tray/system_tray_item.h"
-#include "base/macros.h"
-
-namespace ash {
-class DateDefaultView;
-class SystemClockObserver;
-
-namespace tray {
-class TimeView;
-}
-
-// System tray item for the time and date.
-class ASH_EXPORT TrayDate : public SystemTrayItem, public ClockObserver {
- public:
-  enum ClockLayout {
-    HORIZONTAL_CLOCK,
-    VERTICAL_CLOCK,
-  };
-
-  enum DateAction {
-    NONE,
-    SET_SYSTEM_TIME,
-    SHOW_DATE_SETTINGS,
-  };
-
-  explicit TrayDate(SystemTray* system_tray);
-  ~TrayDate() override;
-
-  // Returns view for help button if it is exists. Returns NULL otherwise.
-  views::View* GetHelpButtonView() const;
-
-  const tray::TimeView* GetTimeTrayForTesting() const;
-  const DateDefaultView* GetDefaultViewForTesting() const;
-  views::View* CreateDefaultViewForTesting(LoginStatus status);
-
- private:
-  // Overridden from SystemTrayItem.
-  views::View* CreateTrayView(LoginStatus status) override;
-  views::View* CreateDefaultView(LoginStatus status) override;
-  views::View* CreateDetailedView(LoginStatus status) override;
-  void DestroyTrayView() override;
-  void DestroyDefaultView() override;
-  void DestroyDetailedView() override;
-  void UpdateAfterLoginStatusChange(LoginStatus status) override;
-  void UpdateAfterShelfAlignmentChange(ShelfAlignment alignment) override;
-
-  // Overridden from ClockObserver.
-  void OnDateFormatChanged() override;
-  void OnSystemClockTimeUpdated() override;
-  void OnSystemClockCanSetTimeChanged(bool can_set_time) override;
-  void Refresh() override;
-
-  tray::TimeView* time_tray_;
-  DateDefaultView* default_view_;
-  LoginStatus login_status_;
-
-  std::unique_ptr<SystemClockObserver> system_clock_observer_;
-
-  DISALLOW_COPY_AND_ASSIGN(TrayDate);
-};
-
-}  // namespace ash
-
-#endif  // ASH_COMMON_SYSTEM_DATE_TRAY_DATE_H_