Added ConsumerManagementService class to handle enroll state and device owner info in boot lockbox.

chrome/browser/chromeos/policy/consumer_management_service.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_MANAGEMENT_SERVICE_H_
+#define CHROME_BROWSER_CHROMEOS_POLICY_CONSUMER_MANAGEMENT_SERVICE_H_
+
+#include <string>
+
+#include "base/callback_forward.h"
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "chromeos/dbus/dbus_method_call_status.h"
+
+class PrefRegistrySimple;
+
+namespace chromeos {
+class CryptohomeClient;
+}
+
+namespace cryptohome {
+class BaseReply;
+}
+
+namespace policy {
+
+// The consumer management service handles the enrollment state, which is an
+// enum value stored in local state to pass the information across reboots
+// between compoments, including settings page, sign-in screen, and user

[bartfab (slow), 2014/08/05 18:07:13]

Nit: s/between/and between/

[davidyu, 2014/08/06 03:04:32]

Done.

+// notification. It also handles the owner user ID stored in boot lockbox.

[bartfab (slow), 2014/08/05 18:07:13]

Nit: s/boot/the boot/

[davidyu, 2014/08/06 03:04:31]

Done.

+class ConsumerManagementService {
+ public:
+  enum EnrollmentState {
+    ENROLLMENT_NONE = 0,        // Not enrolled, or the enrollment is completed.
+    ENROLLMENT_ENROLLING,            // Enrollment is in progress.
+    ENROLLMENT_SUCCESS,              // Success.

[bartfab (slow), 2014/08/05 18:07:13]

How does "Success" differ from "enrollment is completed"?

[davidyu, 2014/08/06 03:04:31]

Update the comment.

+    ENROLLMENT_CANCELED,             // Canceled by the user.
+    ENROLLMENT_BOOT_LOCKBOX_FAILED,  // Failed to write to the boot lockbox.
+    ENROLLMENT_DM_SERVER_FAILED,     // Failed to register the device.
+
+    ENROLLMENT_LAST,                 // This should always be the last one.
+  };
+
+  // GetOwner() invokes this with an argument set to the owner user ID,
+  // or an empty string on failure.
+  typedef base::Callback<void(const std::string&)> GetOwnerCallback;
+
+  // SetOwner() invokes this with an argument indicating success or failure.
+  typedef base::Callback<void(bool)> SetOwnerCallback;
+
+  explicit ConsumerManagementService(chromeos::CryptohomeClient* client);
+
+  // Registers prefs.
+  static void RegisterPrefs(PrefRegistrySimple* registry);
+
+  // Returns the enrollment state.
+  EnrollmentState GetEnrollmentState() const;
+
+  // Sets the enrollment state.
+  void SetEnrollmentState(EnrollmentState state);
+
+  // Returns the device owner stored in the boot lockbox via |callback|.
+  void GetOwner(const GetOwnerCallback& callback);
+
+  // Stores the device owner user ID into the boot lockbox and signs it.
+  // |callback| is invoked with an agument indicating success or failure.
+  void SetOwner(const std::string& user_id, const SetOwnerCallback& callback);
+
+ private:
+  void OnGetBootAttributeDone(
+      const GetOwnerCallback& callback,
+      chromeos::DBusMethodCallStatus call_status,
+      bool dbus_success,
+      const cryptohome::BaseReply& reply);
+
+  void OnSetBootAttributeDone(const SetOwnerCallback& callback,
+                              chromeos::DBusMethodCallStatus call_status,
+                              bool dbus_success,
+                              const cryptohome::BaseReply& reply);
+
+  void OnFlushAndSignBootAttributesDone(
+      const SetOwnerCallback& callback,
+      chromeos::DBusMethodCallStatus call_status,
+      bool dbus_success,
+      const cryptohome::BaseReply& reply);
+
+  chromeos::CryptohomeClient* client_;
+  base::WeakPtrFactory<ConsumerManagementService> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(ConsumerManagementService);
+};
+
+}  // namespace policy
+
+#endif  // CHROME_BROWSER_CHROMEOS_POLICY_CONSUMER_MANAGEMENT_SERVICE_H_