Add device disabling to OOBE flow

chrome/browser/chromeos/login/screens/mock_device_disabled_screen_actor.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/mock_device_disabled_screen_actor.h"
+
+using ::testing::AtLeast;
+using ::testing::AtMost;
+using ::testing::NotNull;
+
+namespace chromeos {
+
+MockDeviceDisabledScreenActor::MockDeviceDisabledScreenActor()
+    : delegate_(nullptr) {
+  EXPECT_CALL(*this, MockSetDelegate(NotNull())).Times(AtLeast(1));
+  EXPECT_CALL(*this, MockSetDelegate(nullptr)).Times(AtMost(1));
+}
+
+MockDeviceDisabledScreenActor::~MockDeviceDisabledScreenActor() {
+  if (delegate_)
+    delegate_->OnActorDestroyed(this);
+}
+
+void MockDeviceDisabledScreenActor::SetDelegate(Delegate* delegate) {
+  delegate_ = delegate;
+  MockSetDelegate(delegate);
+}
+
+}  // namespace chromeos