Pref service: delete old implementation

chrome/browser/prefs/preferences_connection_manager.h

-// Copyright 2016 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_PREFS_PREFERENCES_CONNECTION_MANAGER_H_
-#define CHROME_BROWSER_PREFS_PREFERENCES_CONNECTION_MANAGER_H_
-
-#include <vector>
-
-#include "base/compiler_specific.h"
-#include "base/macros.h"
-#include "components/keyed_service/core/keyed_service_shutdown_notifier.h"
-#include "mojo/public/cpp/bindings/binding_set.h"
-#include "mojo/public/cpp/bindings/strong_binding_set.h"
-#include "services/preferences/public/interfaces/preferences.mojom.h"
-#include "services/service_manager/public/cpp/interface_factory.h"
-#include "services/service_manager/public/cpp/service.h"
-
-// Handles all incoming prefs::mojom::PreferenceManagerRequest, providing a
-// separate PreferencesService per connection request.
-//
-// Additionally monitors system shutdown to clean up connections to PrefService.
-//
-// TODO(jonross): Observe profile switching and update PreferenceManager
-// connections.
-class PreferencesConnectionManager
-    : public NON_EXPORTED_BASE(prefs::mojom::PreferencesServiceFactory),
-      public NON_EXPORTED_BASE(service_manager::InterfaceFactory<
-                               prefs::mojom::PreferencesServiceFactory>),
-      public NON_EXPORTED_BASE(service_manager::Service) {
- public:
-  PreferencesConnectionManager();
-  ~PreferencesConnectionManager() override;
-
- private:
-  // KeyedServiceShutdownNotifier::Subscription callback. Used to cleanup when
-  // the active PrefService is being destroyed.
-  void OnProfileDestroyed();
-
-  // prefs::mojom::PreferencesServiceFactory:
-  void Create(prefs::mojom::PreferencesServiceClientPtr client,
-              prefs::mojom::PreferencesServiceRequest service) override;
-
-  // service_manager::InterfaceFactory<PreferencesServiceFactory>:
-  void Create(const service_manager::Identity& remote_identity,
-              prefs::mojom::PreferencesServiceFactoryRequest request) override;
-
-  // service_manager::Service:
-  bool OnConnect(const service_manager::ServiceInfo& remote_info,
-                 service_manager::InterfaceRegistry* registry) override;
-
-  mojo::BindingSet<prefs::mojom::PreferencesServiceFactory> factory_bindings_;
-
-  // Bindings that automatically cleanup during connection errors.
-  mojo::StrongBindingSet<prefs::mojom::PreferencesService> manager_bindings_;
-
-  // Observes shutdown, when PrefService is being destroyed.
-  std::unique_ptr<KeyedServiceShutdownNotifier::Subscription>
-      profile_shutdown_notification_;
-
-  DISALLOW_COPY_AND_ASSIGN(PreferencesConnectionManager);
-};
-
-#endif  // CHROME_BROWSER_PREFS_PREFERENCES_CONNECTION_MANAGER_H_