Add a "device disabled" OOBE screen

chrome/browser/chromeos/login/screens/device_disabled_screen.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 CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_DEVICE_DISABLED_SCREEN_H_
+#define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_DEVICE_DISABLED_SCREEN_H_
+
+#include "base/macros.h"
+#include "chrome/browser/chromeos/login/screens/base_screen.h"
+#include "chrome/browser/chromeos/login/screens/device_disabled_screen_actor.h"
+
+namespace chromeos {
+
+class ScreenObserver;
+
+// Screen informing the user that the device has been disabled by its owner.
+class DeviceDisabledScreen : public BaseScreen,
+                             public DeviceDisabledScreenActor::Delegate {
+ public:
+  DeviceDisabledScreen(ScreenObserver* observer,
+                       DeviceDisabledScreenActor* actor);
+  ~DeviceDisabledScreen() override;
+
+  // BaseScreen:
+  void PrepareToShow() override;
+  void Show() override;
+  void Hide() override;
+  std::string GetName() const override;
+
+  // DeviceDisabledScreenActor::Delegate:
+  void OnActorDestroyed(DeviceDisabledScreenActor* actor) override;
+
+ private:
+  DeviceDisabledScreenActor* actor_;
+
+  DISALLOW_COPY_AND_ASSIGN(DeviceDisabledScreen);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_DEVICE_DISABLED_SCREEN_H_