Implement device-local account policy pushing

chrome/browser/chromeos/policy/device_cloud_policy_invalidator.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_DEVICE_CLOUD_POLICY_INVALIDATOR_H_
-#define CHROME_BROWSER_CHROMEOS_POLICY_DEVICE_CLOUD_POLICY_INVALIDATOR_H_
-
-#include "base/basictypes.h"
-#include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
-#include "chrome/browser/chromeos/policy/affiliated_invalidation_service_provider.h"
-
-namespace invalidation {
-class InvalidationService;
-}
-
-namespace policy {
-
-class CloudPolicyInvalidator;
-
-// This class manages the lifetime of a device-global |CloudPolicyInvalidator|
-// that handles device policy invalidations. It relies on an
-// |AffiliatedInvalidationServiceProvider| to provide it with access to a shared
-// |InvalidationService| to back the |CloudPolicyInvalidator|. Whenever the
-// shared |InvalidationService| changes, the |CloudPolicyInvalidator| destroyed
-// and re-created.
-class DeviceCloudPolicyInvalidator
-    : public AffiliatedInvalidationServiceProvider::Consumer {
- public:
-  explicit DeviceCloudPolicyInvalidator(
-      AffiliatedInvalidationServiceProvider* invalidation_service_provider);
-  ~DeviceCloudPolicyInvalidator() override;
-
-  // AffiliatedInvalidationServiceProvider::Consumer:
-  void OnInvalidationServiceSet(
-      invalidation::InvalidationService* invalidation_service) override;
-
-  CloudPolicyInvalidator* GetInvalidatorForTest() const;
-
- private:
-  // Create a |CloudPolicyInvalidator| backed by the |invalidation_service|.
-  void CreateInvalidator(
-      invalidation::InvalidationService* invalidation_service);
-
-  // Destroy the current |CloudPolicyInvalidator|, if any.
-  void DestroyInvalidator();
-
-  AffiliatedInvalidationServiceProvider* invalidation_service_provider_;
-
-  // The highest invalidation version that was handled already.
-  int64 highest_handled_invalidation_version_;
-
-  // The current |CloudPolicyInvalidator|. nullptr if no connected invalidation
-  // service is available.
-  scoped_ptr<CloudPolicyInvalidator> invalidator_;
-
-  DISALLOW_COPY_AND_ASSIGN(DeviceCloudPolicyInvalidator);
-};
-
-}  // namespace policy
-
-#endif  // CHROME_BROWSER_CHROMEOS_POLICY_DEVICE_CLOUD_POLICY_INVALIDATOR_H_