cros: Move ash/login/views to ash/login/ui

ash/login/views/lock_contents_view.h

-// Copyright 2017 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_LOGIN_VIEWS_CONTENTS_VIEW_H_
-#define ASH_LOGIN_VIEWS_CONTENTS_VIEW_H_
-
-#include "base/macros.h"
-#include "ui/views/controls/button/md_text_button.h"
-#include "ui/views/view.h"
-
-namespace ash {
-
-// LockContentsView hosts the root view for the lock screen. All other lock
-// screen views are embedded within this one. LockContentsView is per-display,
-// but the lock screen should only ever be shown on a single display, so there
-// is effectively only a single instance.
-class LockContentsView : public views::View, public views::ButtonListener {
- public:
-  LockContentsView();
-  ~LockContentsView() override;
-
-  // views::ButtonListener:
-  void ButtonPressed(views::Button* sender, const ui::Event& event) override;
-
- private:
-  views::Button* unlock_button_;
-
-  DISALLOW_COPY_AND_ASSIGN(LockContentsView);
-};
-
-}  // namespace ash
-
-#endif  // ASH_LOGIN_VIEWS_CONTENTS_VIEW_H_