Setup Chromad user policy plumbing

chrome/browser/chromeos/policy/user_policy_manager_factory_chromeos.h

+// Copyright (c) 2013 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_USER_POLICY_MANAGER_FACTORY_CHROMEOS_H_
+#define CHROME_BROWSER_CHROMEOS_POLICY_USER_POLICY_MANAGER_FACTORY_CHROMEOS_H_
+
+#include <map>
+#include <memory>
+
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/singleton.h"
+#include "components/keyed_service/content/browser_context_keyed_base_factory.h"
+
+class Profile;
+
+namespace base {
+class SequencedTaskRunner;
+}
+
+namespace content {
+class BrowserContext;
+}
+
+namespace policy {
+
+class ConfigurationPolicyProvider;
+class UserActiveDirectoryPolicyManager;
+class UserCloudPolicyManagerChromeOS;
+
+// Shared BrowserContextKeyedBaseFactory implementation for
+// UserCloudPolicyManagerChromeOS and
+// UserActiveDirectoryPolicyManager.
+//
+// UserCloudPolicyManagerChromeOS/UserActiveDirectoryPolicyManager is handled
+// differently than other KeyedServices 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 UserCloudPolicyManagerChromeOS once the
+// former has been converted to a KeyedService.
+// See also http://crbug.com/131843 and http://crbug.com/131844.
+class UserPolicyManagerFactoryChromeOS : public BrowserContextKeyedBaseFactory {
+ public:
+  // Returns an instance of the UserPolicyManagerFactoryChromeOS singleton.
+  static UserPolicyManagerFactoryChromeOS* GetInstance();
+
+  // Get the ConfigurationPolicyProvider instance associated with |profile|.
+  // Depending on the type of management, either a
+  // UserCloudPolicyManagerChromeOS or a UserActiveDirectoryPolicyManager or
+  // nullptr is returned.
+  static ConfigurationPolicyProvider* GetForProfile(Profile* profile);
+
+  // Returns the UserCloudPolicyManagerChromeOS instance associated with
+  // |profile| or nullptr in case there is none.
+  static UserCloudPolicyManagerChromeOS* GetCloudPolicyManagerForProfile(
+      Profile* profile);
+
+  // Returns the UserActiveDirectoryPolicyManager instance associated with
+  // |profile| or nullptr in case there is none.
+  static UserActiveDirectoryPolicyManager*
+  GetActiveDirectoryPolicyManagerForProfile(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 std::unique_ptr<ConfigurationPolicyProvider> CreateForProfile(
+      Profile* profile,
+      bool force_immediate_load,
+      scoped_refptr<base::SequencedTaskRunner> background_task_runner);
+
+ private:
+  friend struct base::DefaultSingletonTraits<UserPolicyManagerFactoryChromeOS>;
+
+  UserPolicyManagerFactoryChromeOS();
+  ~UserPolicyManagerFactoryChromeOS() override;
+
+  // See comments for the static versions above.
+  UserCloudPolicyManagerChromeOS* GetCloudPolicyManager(Profile* profile);
+  UserActiveDirectoryPolicyManager* GetActiveDirectoryPolicyManager(
+      Profile* profile);
+  std::unique_ptr<ConfigurationPolicyProvider> CreateManagerForProfile(
+      Profile* profile,
+      bool force_immediate_load,
+      scoped_refptr<base::SequencedTaskRunner> background_task_runner);
+
+  // BrowserContextKeyedBaseFactory:
+  void BrowserContextShutdown(content::BrowserContext* context) override;
+  void BrowserContextDestroyed(content::BrowserContext* context) override;
+  void SetEmptyTestingFactory(content::BrowserContext* context) override;
+  bool HasTestingFactory(content::BrowserContext* context) override;
+  void CreateServiceNow(content::BrowserContext* context) override;
+
+  std::map<Profile*, UserCloudPolicyManagerChromeOS*> cloud_managers_;
+  std::map<Profile*, UserActiveDirectoryPolicyManager*>
+      active_directory_managers_;
+
+  DISALLOW_COPY_AND_ASSIGN(UserPolicyManagerFactoryChromeOS);
+};
+
+}  // namespace policy
+
+#endif  // CHROME_BROWSER_CHROMEOS_POLICY_USER_POLICY_MANAGER_FACTORY_CHROMEOS_H_