Move PrefStoreManagerImpl into //services/preferences.

services/preferences/public/cpp/pref_store_manager_impl.h

-// Copyright 2017 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 SERVICES_PREFERENCES_PUBLIC_CPP_PREF_STORE_MANAGER_IMPL_H_
-#define SERVICES_PREFERENCES_PUBLIC_CPP_PREF_STORE_MANAGER_IMPL_H_
-
-#include <memory>
-#include <set>
-#include <unordered_map>
-#include <vector>
-
-#include "base/compiler_specific.h"
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "components/prefs/pref_value_store.h"
-#include "mojo/public/cpp/bindings/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"
-
-namespace base {
-class SequencedWorkerPool;
-}
-
-namespace prefs {
-class PersistentPrefStoreImpl;
-
-// This class mediates the connection of clients who wants to read preferences
-// and the pref stores that store those preferences. Pref stores use the
-// |PrefStoreRegistry| interface to register themselves with the manager and
-// clients use the |PrefStoreConnector| interface to connect to these stores.
-class PrefStoreManagerImpl
-    : public mojom::PrefStoreRegistry,
-      public mojom::PrefStoreConnector,
-      public service_manager::InterfaceFactory<mojom::PrefStoreConnector>,
-      public service_manager::InterfaceFactory<mojom::PrefStoreRegistry>,
-      public service_manager::InterfaceFactory<
-          mojom::PersistentPrefStoreConnector>,
-      public mojom::PrefServiceControl,
-      public service_manager::InterfaceFactory<mojom::PrefServiceControl>,
-      public service_manager::Service {
- public:
-  using PrefStoreTypes = std::set<PrefValueStore::PrefStoreType>;
-
-  // Only replies to Connect calls when all |expected_pref_stores| have
-  // registered.
-  PrefStoreManagerImpl(PrefStoreTypes expected_pref_stores,
-                       scoped_refptr<base::SequencedWorkerPool> worker_pool);
-  ~PrefStoreManagerImpl() override;
-
- private:
-  using PrefStorePtrs =
-      std::unordered_map<PrefValueStore::PrefStoreType, mojom::PrefStorePtr>;
-
-  // mojom::PrefStoreRegistry:
-  void Register(PrefValueStore::PrefStoreType type,
-                mojom::PrefStorePtr pref_store_ptr) override;
-
-  // mojom::PrefStoreConnector:
-  void Connect(const ConnectCallback& callback) override;
-
-  // service_manager::InterfaceFactory<PrefStoreConnector>:
-  void Create(const service_manager::Identity& remote_identity,
-              prefs::mojom::PrefStoreConnectorRequest request) override;
-
-  // service_manager::InterfaceFactory<PrefStoreRegistry>:
-  void Create(const service_manager::Identity& remote_identity,
-              prefs::mojom::PrefStoreRegistryRequest request) override;
-
-  // service_manager::InterfaceFactory<PersistentPrefStoreConnector>:
-  void Create(
-      const service_manager::Identity& remote_identity,
-      prefs::mojom::PersistentPrefStoreConnectorRequest request) override;
-
-  // service_manager::InterfaceFactory<PrefServiceControl>:
-  void Create(const service_manager::Identity& remote_identity,
-              prefs::mojom::PrefServiceControlRequest request) override;
-
-  // PrefServiceControl:
-  void Init(mojom::PersistentPrefStoreConfigurationPtr configuration) override;
-
-  // service_manager::Service:
-  void OnStart() override;
-  bool OnConnect(const service_manager::ServiceInfo& remote_info,
-                 service_manager::InterfaceRegistry* registry) override;
-
-  // Called when a PrefStore previously registered using |Register| disconnects.
-  void OnPrefStoreDisconnect(PrefValueStore::PrefStoreType type);
-
-  // Have all the expected PrefStores connected?
-  bool AllConnected() const;
-
-  // PrefStores that need to register before replying to any Connect calls.
-  PrefStoreTypes expected_pref_stores_;
-
-  // Registered pref stores.
-  PrefStorePtrs pref_store_ptrs_;
-
-  // We hold on to the connection request callbacks until all expected
-  // PrefStores have registered.
-  std::vector<ConnectCallback> pending_callbacks_;
-
-  mojo::BindingSet<mojom::PrefStoreConnector> connector_bindings_;
-  mojo::BindingSet<mojom::PrefStoreRegistry> registry_bindings_;
-  std::unique_ptr<PersistentPrefStoreImpl> persistent_pref_store_;
-  mojo::BindingSet<mojom::PersistentPrefStoreConnector>
-      persistent_pref_store_bindings_;
-  mojo::Binding<mojom::PrefServiceControl> init_binding_;
-
-  // Requests made to connect to the service before it has been initialized.
-  // These will be handled when initialization completes.
-  std::vector<mojom::PersistentPrefStoreConnectorRequest>
-      pending_persistent_pref_store_requests_;
-
-  scoped_refptr<base::SequencedWorkerPool> worker_pool_;
-
-  DISALLOW_COPY_AND_ASSIGN(PrefStoreManagerImpl);
-};
-
-}  // namespace prefs
-
-#endif  // SERVICES_PREFERENCES_PUBLIC_CPP_PREF_STORE_MANAGER_IMPL_H_