Implemented consumer management unenrollment.

chrome/browser/chromeos/policy/consumer_unenrollment_handler.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_POLICY_CONSUMER_UNENROLLMENT_HANDLER_H_
+#define CHROME_BROWSER_CHROMEOS_POLICY_CONSUMER_UNENROLLMENT_HANDLER_H_
+
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "components/keyed_service/core/keyed_service.h"
+
+namespace chromeos {
+class DeviceSettingsService;
+}
+
+namespace policy {
+
+class ConsumerManagementService;
+class DeviceCloudPolicyManagerChromeOS;
+
+// ConsumerUnenrollmentHandler unenrolls the device from consumer management

[bartfab (slow), 2014/11/28 13:25:18]

Nit: s/from/from the/

[davidyu, 2014/12/01 17:05:22]

Done.

+// service. It sends a request to the server and resets the management settings.
+class ConsumerUnenrollmentHandler : public KeyedService {
+ public:
+  ConsumerUnenrollmentHandler(
+      chromeos::DeviceSettingsService* device_settings_service,
+      ConsumerManagementService* consumer_management_service,
+      DeviceCloudPolicyManagerChromeOS* device_cloud_policy_manager);
+  ~ConsumerUnenrollmentHandler() override;
+
+  void Shutdown() override;

[bartfab (slow), 2014/11/28 13:25:18]

Why do you override this method?

[davidyu, 2014/12/01 17:05:22]

Deleted.

+
+  // Starts the unenrollment process.
+  void Start();
+
+ private:
+  void OnUnregistered(bool success);
+  void OnManagementSettingsSet();
+
+  chromeos::DeviceSettingsService* device_settings_service_;
+  ConsumerManagementService* consumer_management_service_;
+  DeviceCloudPolicyManagerChromeOS* device_cloud_policy_manager_;
+
+  base::WeakPtrFactory<ConsumerUnenrollmentHandler> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(ConsumerUnenrollmentHandler);
+};
+
+}  // namespace policy
+
+#endif  // CHROME_BROWSER_CHROMEOS_POLICY_CONSUMER_UNENROLLMENT_HANDLER_H_