Implemented consumer management unenrollment.

chrome/browser/chromeos/policy/device_cloud_policy_manager_chromeos.h

 // Copyright (c) 2012 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_DEVICE_CLOUD_POLICY_MANAGER_CHROMEOS_H_
 #define CHROME_BROWSER_CHROMEOS_POLICY_DEVICE_CLOUD_POLICY_MANAGER_CHROMEOS_H_
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
+#include "base/callback_forward.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
 #include "chrome/browser/chromeos/policy/server_backed_state_keys_broker.h"
 #include "components/policy/core/common/cloud/cloud_policy_client.h"
 #include "components/policy/core/common/cloud/cloud_policy_manager.h"
 
 namespace base {
 class SequencedTaskRunner;
@@ skipping 12 matching lines @@
 
 class DeviceCloudPolicyStoreChromeOS;
 
 // CloudPolicyManager specialization for device policy on Chrome OS.
 class DeviceCloudPolicyManagerChromeOS : public CloudPolicyManager {
  public:
   class Observer {
    public:
     // Invoked when the device cloud policy manager connects.
     virtual void OnDeviceCloudPolicyManagerConnected() = 0;
+    // Invoked when the device cloud policy manager is disconnected.

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

Nit: s/is disconnected/disconnects/

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

Done.

+    virtual void OnDeviceCloudPolicyManagerDisconnected() = 0;
   };
 
   // |task_runner| is the runner for policy refresh tasks.
   DeviceCloudPolicyManagerChromeOS(
       scoped_ptr<DeviceCloudPolicyStoreChromeOS> store,
       const scoped_refptr<base::SequencedTaskRunner>& task_runner,
       ServerBackedStateKeysBroker* state_keys_broker);
   virtual ~DeviceCloudPolicyManagerChromeOS();
 
   // Initializes state keys and requisition information.
@@ skipping 25 matching lines @@
   // Returns the robot 'email address' associated with the device robot
   // account (sometimes called a service account) associated with this device
   // during enterprise enrollment.
   std::string GetRobotAccountId();
 
   // Starts the connection via |client_to_connect|.
   void StartConnection(scoped_ptr<CloudPolicyClient> client_to_connect,
                        scoped_ptr<CloudPolicyClient::StatusProvider>
                            device_status_provider);
 
+  // Sends the unregister request. |callback| is invoked with a boolean
+  // parameter indicating the result when done.
+  virtual void Unregister(const base::Callback<void(bool)>& callback);

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

Nit: If you define a type for this callback, the fake implementation will be
able to reference it instead of repeating the whole |const
base::Callback<void(bool)>|.

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

Done.

+
+  // Disconnects the manager.
+  virtual void Disconnect();
+
   DeviceCloudPolicyStoreChromeOS* device_store() {
     return device_store_.get();
   }
 
  private:
   // Saves the state keys received from |session_manager_client_|.
   void OnStateKeysUpdated();
 
   // Initializes requisition settings at OOBE with values from VPD.
   void InitializeRequisition();
 
   void NotifyConnected();
+  void NotifyDisconnected();
 
   // Points to the same object as the base CloudPolicyManager::store(), but with
   // actual device policy specific type.
   scoped_ptr<DeviceCloudPolicyStoreChromeOS> device_store_;
   ServerBackedStateKeysBroker* state_keys_broker_;
 
   ServerBackedStateKeysBroker::Subscription state_keys_update_subscription_;
 
   // PrefService instance to read the policy refresh rate from.
   PrefService* local_state_;
 
   scoped_ptr<chromeos::attestation::AttestationPolicyObserver>
       attestation_policy_observer_;
 
   // TODO(davidyu): Currently we need to keep this object alive while
   // CloudPolicyClient is in use. We should have CPC take over the
   // ownership of this object instead. See http://crbug.com/383696.
   scoped_ptr<CloudPolicyClient::StatusProvider> device_status_provider_;
 
   ObserverList<Observer, true> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(DeviceCloudPolicyManagerChromeOS);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_CHROMEOS_POLICY_DEVICE_CLOUD_POLICY_MANAGER_CHROMEOS_H_