Setup Chromad user policy plumbing

chrome/browser/chromeos/policy/user_cloud_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_CLOUD_POLICY_MANAGER_FACTORY_CHROMEOS_H_
-#define CHROME_BROWSER_CHROMEOS_POLICY_USER_CLOUD_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 UserCloudPolicyManagerChromeOS;
-
-// BrowserContextKeyedBaseFactory implementation
-// for UserCloudPolicyManagerChromeOS instances that initialize per-profile
-// cloud policy settings on ChromeOS.
-//
-// UserCloudPolicyManagerChromeOS is handled different 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 UserCloudPolicyManagerFactoryChromeOS
-    : public BrowserContextKeyedBaseFactory {
- public:
-  // Returns an instance of the UserCloudPolicyManagerFactoryChromeOS singleton.
-  static UserCloudPolicyManagerFactoryChromeOS* GetInstance();
-
-  // Returns the UserCloudPolicyManagerChromeOS instance associated with
-  // |profile|.
-  static UserCloudPolicyManagerChromeOS* 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 std::unique_ptr<UserCloudPolicyManagerChromeOS> CreateForProfile(
-      Profile* profile,
-      bool force_immediate_load,
-      scoped_refptr<base::SequencedTaskRunner> background_task_runner);
-
- private:
-  friend struct base::DefaultSingletonTraits<
-      UserCloudPolicyManagerFactoryChromeOS>;
-
-  UserCloudPolicyManagerFactoryChromeOS();
-  ~UserCloudPolicyManagerFactoryChromeOS() override;
-
-  // See comments for the static versions above.
-  UserCloudPolicyManagerChromeOS* GetManagerForProfile(Profile* profile);
-  std::unique_ptr<UserCloudPolicyManagerChromeOS> 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;
-
-  typedef std::map<Profile*, UserCloudPolicyManagerChromeOS*> ManagerMap;
-  ManagerMap managers_;
-
-  DISALLOW_COPY_AND_ASSIGN(UserCloudPolicyManagerFactoryChromeOS);
-};
-
-}  // namespace policy
-
-#endif  // CHROME_BROWSER_CHROMEOS_POLICY_USER_CLOUD_POLICY_MANAGER_FACTORY_CHROMEOS_H_