Move policy code into components/policy.

chrome/browser/policy/cloud/cloud_policy_service.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_POLICY_CLOUD_CLOUD_POLICY_SERVICE_H_
-#define CHROME_BROWSER_POLICY_CLOUD_CLOUD_POLICY_SERVICE_H_
-
-#include <string>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/callback_forward.h"
-#include "base/compiler_specific.h"
-#include "base/observer_list.h"
-#include "chrome/browser/policy/cloud/cloud_policy_client.h"
-#include "chrome/browser/policy/cloud/cloud_policy_constants.h"
-#include "chrome/browser/policy/cloud/cloud_policy_store.h"
-
-namespace policy {
-
-// Coordinates cloud policy handling, moving downloaded policy from the client
-// to the store, and setting up client registrations from cached data in the
-// store. Also coordinates actions on policy refresh triggers.
-class CloudPolicyService : public CloudPolicyClient::Observer,
-                           public CloudPolicyStore::Observer {
- public:
-  // Callback invoked once the policy refresh attempt has completed. Passed
-  // bool parameter is true if the refresh was successful (no error).
-  typedef base::Callback<void(bool)> RefreshPolicyCallback;
-
-  class Observer {
-   public:
-    // Invoked when CloudPolicyService has finished initializing (any initial
-    // policy load activity has completed and the CloudPolicyClient has
-    // been registered, if possible).
-    virtual void OnInitializationCompleted(CloudPolicyService* service) = 0;
-    virtual ~Observer() {}
-  };
-
-  // |client| and |store| must remain valid for the object life time.
-  CloudPolicyService(const PolicyNamespaceKey& policy_ns_key,
-                     CloudPolicyClient* client,
-                     CloudPolicyStore* store);
-  virtual ~CloudPolicyService();
-
-  // Returns the domain that manages this user/device, according to the current
-  // policy blob. Empty if not managed/not available.
-  std::string ManagedBy() const;
-
-  // Refreshes policy. |callback| will be invoked after the operation completes
-  // or aborts because of errors.
-  void RefreshPolicy(const RefreshPolicyCallback& callback);
-
-  // Adds/Removes an Observer for this object.
-  void AddObserver(Observer* observer);
-  void RemoveObserver(Observer* observer);
-
-  // CloudPolicyClient::Observer:
-  virtual void OnPolicyFetched(CloudPolicyClient* client) OVERRIDE;
-  virtual void OnRegistrationStateChanged(CloudPolicyClient* client) OVERRIDE;
-  virtual void OnClientError(CloudPolicyClient* client) OVERRIDE;
-
-  // CloudPolicyStore::Observer:
-  virtual void OnStoreLoaded(CloudPolicyStore* store) OVERRIDE;
-  virtual void OnStoreError(CloudPolicyStore* store) OVERRIDE;
-
-  bool IsInitializationComplete() const { return initialization_complete_; }
-
- private:
-  // Helper function that is called when initialization may be complete, and
-  // which is responsible for notifying observers.
-  void CheckInitializationCompleted();
-
-  // Invokes the refresh callbacks and clears refresh state. The |success| flag
-  // is passed through to the refresh callbacks.
-  void RefreshCompleted(bool success);
-
-  // The policy namespace fetched by |client_| and expected by |store_|.
-  PolicyNamespaceKey policy_ns_key_;
-
-  // The client used to talk to the cloud.
-  CloudPolicyClient* client_;
-
-  // Takes care of persisting and decoding cloud policy.
-  CloudPolicyStore* store_;
-
-  // Tracks the state of a pending refresh operation, if any.
-  enum {
-    // No refresh pending.
-    REFRESH_NONE,
-    // Policy fetch is pending.
-    REFRESH_POLICY_FETCH,
-    // Policy store is pending.
-    REFRESH_POLICY_STORE,
-  } refresh_state_;
-
-  // Callbacks to invoke upon policy refresh.
-  std::vector<RefreshPolicyCallback> refresh_callbacks_;
-
-  // Set to true once the service is initialized (initial policy load/refresh
-  // is complete).
-  bool initialization_complete_;
-
-  // Observers who will receive notifications when the service has finished
-  // initializing.
-  ObserverList<Observer, true> observers_;
-
-  DISALLOW_COPY_AND_ASSIGN(CloudPolicyService);
-};
-
-}  // namespace policy
-
-#endif  // CHROME_BROWSER_POLICY_CLOUD_CLOUD_POLICY_SERVICE_H_