Add initial device policy infrastructure.

chrome/browser/policy/cloud_policy_context.h

+// Copyright (c) 2011 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_POLICY_CONTEXT_H_
+#define CHROME_BROWSER_POLICY_CLOUD_POLICY_CONTEXT_H_
+#pragma once
+
+#include "base/scoped_ptr.h"
+#include "chrome/browser/prefs/pref_member.h"
+#include "chrome/common/notification_observer.h"
+
+class FilePath;
+class PrefService;
+class URLRequestContextGetter;
+
+namespace policy {
+
+class CloudPolicyCache;
+class CloudPolicyClient;
+class CloudPolicyController;
+class ConfigurationPolicyProvider;
+class DeviceManagementService;
+class DeviceTokenFetcher;
+
+// This class is a container for the infrastructure required to support cloud
+// policy. It glues together the backend, the policy client and manages the live

[Jakob Kummerow, 2011/02/07 16:00:09]

nit: s/live/life/

[Jakob Kummerow, 2011/02/14 13:50:34]

Done.

+// cycle of the policy providers.
+class CloudPolicyContext : public NotificationObserver {

[danno, 2011/02/04 16:01:33]

CloudPolicyCustodian

[Jakob Kummerow, 2011/02/14 13:50:34]

Done -- CloudPolicySubsystem.

+ public:
+  CloudPolicyContext(const FilePath& policy_cache_file,
+                     CloudPolicyController* controller_);
+  virtual ~CloudPolicyContext();
+
+  // Initializes the context.
+  void Initialize(PrefService* prefs, URLRequestContextGetter* request_context);
+
+  // Shuts the context down. This must be called before threading and network
+  // infrastructure goes away.
+  void Shutdown();
+
+  ConfigurationPolicyProvider* GetManagedPolicyProvider();
+  ConfigurationPolicyProvider* GetRecommendedPolicyProvider();
+
+  static void RegisterPrefs(PrefService* user_prefs);
+
+  static const int kDefaultPolicyRefreshRateInMilliseconds =
+      3 * 60 * 60 * 1000; // 3 hours.

[Jakob Kummerow, 2011/02/07 16:00:09]

nit: two spaces before comment

[Jakob Kummerow, 2011/02/14 13:50:34]

Done.

+
+ private:
+  // Updates the policy provider with a new refresh rate value.
+  void UpdatePolicyRefreshRate();
+
+  // NotificationObserver overrides.
+  virtual void Observe(NotificationType type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details);
+
+  // The pref service that controls the refresh rate.
+  PrefService* prefs_;
+
+  // Tracks the pref value for the policy refresh rate.
+  IntegerPrefMember policy_refresh_rate_;
+
+  // Cloud policy infrastructure stuff.
+  scoped_ptr<DeviceManagementService> device_management_service_;
+  scoped_ptr<DeviceTokenFetcher> device_token_fetcher_;
+  scoped_ptr<CloudPolicyCache> cloud_policy_cache_;
+  scoped_ptr<CloudPolicyClient> cloud_policy_client_;
+};
+
+}  // namespace policy
+
+#endif  // CHROME_BROWSER_POLICY_CLOUD_POLICY_CONTEXT_H_