Split UserCloudPolicyManager implementation.

chrome/browser/policy/user_cloud_policy_manager_factory.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_USER_CLOUD_POLICY_MANAGER_FACTORY_H_
+#define CHROME_BROWSER_POLICY_USER_CLOUD_POLICY_MANAGER_FACTORY_H_
+
+#include <map>
+
+#include "base/basictypes.h"
+#include "base/memory/singleton.h"
+#include "chrome/browser/profiles/profile_keyed_base_factory.h"
+
+class Profile;
+
+namespace policy {
+
+class UserCloudPolicyManager;
+
+// ProfileKeyedBaseFactory implementation for UserCloudPolicyManager
+// instances that initialize per-profile cloud policy settings on the desktop
+// platforms.
+//
+// UserCloudPolicyManager is handled different than other ProfileKeyedServices
+// because it is a dependency of PrefService. Therefore, lifetime of instances
+// is managed by Profile, Profile startup code invokes CreateForProfile()
+// explicitly, takes ownership, and the instance is only deleted after
+// PrefService destruction.
+//
+// TODO(mnissler): Remove the special lifetime management in favor of
+// PrefService directly depending on UserCloudPolicyManager once the former has
+// been converted to a ProfileKeyedService. See also http://crbug.com/131843 and
+// http://crbug.com/131844.
+class UserCloudPolicyManagerFactory : public ProfileKeyedBaseFactory {
+ public:
+  // Returns an instance of the UserCloudPolicyManagerFactory singleton.
+  static UserCloudPolicyManagerFactory* GetInstance();
+
+  // Returns the UserCloudPolicyManager instance associated with |profile|.
+  static UserCloudPolicyManager* GetForProfile(Profile* profile);
+
+  // Creates an instance for |profile|. Note that the caller is responsible for
+  // managing the lifetime of the instance. Subsequent calls to GetForProfile()
+  // will return the created instance as long as it lives.
+  //
+  // If |force_immediate_load| is true, policy is loaded synchronously from
+  // UserCloudPolicyStore at startup.
+  static scoped_ptr<UserCloudPolicyManager> CreateForProfile(
+      Profile* profile,
+      bool force_immediate_load);
+
+ private:
+  friend class UserCloudPolicyManager;
+  friend struct DefaultSingletonTraits<UserCloudPolicyManagerFactory>;
+
+  UserCloudPolicyManagerFactory();
+  virtual ~UserCloudPolicyManagerFactory();
+
+  // See comments for the static versions above.
+  UserCloudPolicyManager* GetManagerForProfile(Profile* profile);
+  scoped_ptr<UserCloudPolicyManager> CreateManagerForProfile(
+      Profile* profile,
+      bool force_immediate_load);
+
+  // ProfileKeyedBaseFactory:
+  virtual void ProfileShutdown(Profile* profile) OVERRIDE;
+  virtual void SetEmptyTestingFactory(Profile* profile) OVERRIDE;
+  virtual void CreateServiceNow(Profile* profile) OVERRIDE;
+
+  // Invoked by UserCloudPolicyManager to register/unregister instances.
+  void Register(Profile* profile, UserCloudPolicyManager* instance);
+  void Unregister(Profile* profile, UserCloudPolicyManager* instance);
+
+  typedef std::map<Profile*, UserCloudPolicyManager*> ManagerMap;
+  ManagerMap managers_;
+
+  DISALLOW_COPY_AND_ASSIGN(UserCloudPolicyManagerFactory);
+};
+
+}  // namespace policy
+
+#endif  // CHROME_BROWSER_POLICY_USER_CLOUD_POLICY_MANAGER_FACTORY_H_