Delete old SmartDeploy UI.

ash/system/chromeos/virtual_keyboard/tray_keyboard_lock.h

-// Copyright 2014 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_SYSTEM_CHROMEOS_VIRTUAL_KEYBOARD_TRAY_KEYBOARD_LOCK_H
-#define ASH_SYSTEM_CHROMEOS_VIRTUAL_KEYBOARD_TRAY_KEYBOARD_LOCK_H
-
-#include "ash/shell_observer.h"
-#include "ash/system/chromeos/virtual_keyboard/virtual_keyboard_observer.h"
-#include "ash/system/tray/system_tray_notifier.h"
-#include "ash/system/tray/tray_image_item.h"
-#include "ash/system/tray_accessibility.h"
-#include "ash/wm/maximize_mode/maximize_mode_controller.h"
-
-namespace ash {
-
-// TrayKeyboardLock is a provider of the default view for the SystemTray. This
-// view indicates the current state of the virtual keyboard when an external
-// keyboard is plugged in. The default view can be interacted with, it toggles
-// the state of the keyboard lock.
-class ASH_EXPORT TrayKeyboardLock : public SystemTrayItem,
-                                    public VirtualKeyboardObserver {
- public:
-  explicit TrayKeyboardLock(SystemTray* system_tray);
-  virtual ~TrayKeyboardLock();
-
-  // VirtualKeyboardObserver
-  virtual void OnKeyboardSuppressionChanged(bool suppressed) override;
-
-  // SystemTrayItem:
-  virtual views::View* CreateDefaultView(user::LoginStatus status) override;
-
- private:
-  friend class TrayKeyboardLockTest;
-
-  // True if the on-screen keyboard is suppressed.
-  bool virtual_keyboard_suppressed_;
-
-  DISALLOW_COPY_AND_ASSIGN(TrayKeyboardLock);
-};
-
-}  // namespace ash
-
-#endif  // ASH_SYSTEM_CHROMEOS_VIRTUAL_KEYBOARD_TRAY_KEYBOARD_LOCK_H