Add a "device disabled" OOBE screen

chrome/browser/chromeos/login/screens/device_disabled_screen.cc

+// 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.
+
+#include "chrome/browser/chromeos/login/screens/device_disabled_screen.h"
+
+#include <string>
+
+#include "base/logging.h"
+#include "base/values.h"
+#include "chrome/browser/chromeos/login/screens/screen_observer.h"
+#include "chrome/browser/chromeos/login/wizard_controller.h"
+
+namespace chromeos {
+
+DeviceDisabledScreen::DeviceDisabledScreen(ScreenObserver* observer,
+                                           DeviceDisabledScreenActor* actor)
+    : BaseScreen(observer),
+      actor_(actor) {
+  DCHECK(actor_);
+  if (actor_)
+    actor_->SetDelegate(this);
+}
+
+DeviceDisabledScreen::~DeviceDisabledScreen() {
+  if (actor_)
+    actor_->SetDelegate(NULL);
+}
+
+void DeviceDisabledScreen::PrepareToShow() {
+}
+
+void DeviceDisabledScreen::Show() {
+  if (actor_)
+    actor_->Show();
+}
+
+void DeviceDisabledScreen::Hide() {
+  if (actor_)
+    actor_->Hide();
+}
+
+std::string DeviceDisabledScreen::GetName() const {
+  return WizardController::kDeviceDisabledScreenName;
+}
+
+void DeviceDisabledScreen::OnActorDestroyed(DeviceDisabledScreenActor* actor) {
+  if (actor_ == actor)
+    actor_ = NULL;
+}
+
+}  // namespace chromeos