[CrOS Tether] Fill out the Initializer class. Tether will now initialize fully once the flag is ena…

chromeos/components/tether/initializer.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 CHROMEOS_COMPONENTS_TETHER_INITIALIZER_H_
 #define CHROMEOS_COMPONENTS_TETHER_INITIALIZER_H_
 
+#include <memory>
+
+#include "base/gtest_prod_util.h"
 #include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/weak_ptr.h"
+#include "components/signin/core/browser/profile_oauth2_token_service.h"
+#include "device/bluetooth/bluetooth_adapter.h"
+#include "device/bluetooth/bluetooth_advertisement.h"
+
+class PrefService;
 
 namespace cryptauth {
 class CryptAuthService;
+class RemoteBeaconSeedFetcher;
 }
 
 namespace chromeos {
 
+class NetworkConnect;
+class NetworkStateHandler;
+
 namespace tether {
 
+class ActiveHost;
+class ActiveHostNetworkStateUpdater;
+class BleConnectionManager;
+class DeviceIdTetherNetworkGuidMap;
+class HostScanner;
+class HostScanDevicePrioritizer;
+class LocalDeviceDataProvider;
+class NotificationPresenter;
+class TetherConnector;
+class TetherHostFetcher;
+class WifiHotspotConnector;
+
 // Initializes the Tether Chrome OS component.
-// TODO(khorimoto): Implement.
-class Initializer {
+class Initializer : public OAuth2TokenService::Observer {
  public:
-  static void Initialize(cryptauth::CryptAuthService* cryptauth_service);
+  // Initializes the tether feature.
+  static void Init(
+      cryptauth::CryptAuthService* cryptauth_service,
+      std::unique_ptr<NotificationPresenter> notification_presenter,
+      PrefService* pref_service,
+      ProfileOAuth2TokenService* token_service,
+      NetworkStateHandler* network_state_handler,
+      NetworkConnect* network_connect);
+
+  // Shuts down the tether feature, destroying all internal classes. This should
+  // be called before the dependencies passed to Init() are destroyed.
+  static void Shutdown();
 
  private:
+  friend class InitializerTest;
+
   static Initializer* instance_;
 
-  explicit Initializer(cryptauth::CryptAuthService* cryptauth_service);
-  ~Initializer();
+  Initializer(cryptauth::CryptAuthService* cryptauth_service,
+              std::unique_ptr<NotificationPresenter> notification_presenter,
+              PrefService* pref_service,
+              ProfileOAuth2TokenService* token_service,
+              NetworkStateHandler* network_state_handler,
+              NetworkConnect* network_connect);
+  ~Initializer() override;
+
+  // OAuth2TokenService::Observer:
+  void OnRefreshTokensLoaded() override;
+
+  void FetchBluetoothAdapter();
+  void OnBluetoothAdapterFetched(
+      scoped_refptr<device::BluetoothAdapter> adapter);
+  void OnBluetoothAdapterAdvertisingIntervalSet(
+      scoped_refptr<device::BluetoothAdapter> adapter);
+  void OnBluetoothAdapterAdvertisingIntervalError(
+      device::BluetoothAdvertisement::ErrorCode status);
 
   cryptauth::CryptAuthService* cryptauth_service_;
+  std::unique_ptr<NotificationPresenter> notification_presenter_;
+  PrefService* pref_service_;
+  ProfileOAuth2TokenService* token_service_;
+  NetworkStateHandler* network_state_handler_;
+  NetworkConnect* network_connect_;
+
+  // Declare new objects in the order that they will be created during
+  // initialization to ensure that they are destroyed in the correct order. This
+  // order will be enforced by InitializerTest.TestCreateAndDestroy.
+  std::unique_ptr<TetherHostFetcher> tether_host_fetcher_;
+  std::unique_ptr<LocalDeviceDataProvider> local_device_data_provider_;
+  std::unique_ptr<cryptauth::RemoteBeaconSeedFetcher>
+      remote_beacon_seed_fetcher_;
+  std::unique_ptr<BleConnectionManager> ble_connection_manager_;
+  std::unique_ptr<HostScanDevicePrioritizer> host_scan_device_prioritizer_;
+  std::unique_ptr<WifiHotspotConnector> wifi_hotspot_connector_;
+  std::unique_ptr<ActiveHost> active_host_;
+  std::unique_ptr<ActiveHostNetworkStateUpdater>
+      active_host_network_state_updater_;
+  std::unique_ptr<DeviceIdTetherNetworkGuidMap>
+      device_id_tether_network_guid_map_;
+  std::unique_ptr<TetherConnector> tether_connector_;
+  std::unique_ptr<HostScanner> host_scanner_;
+
+  base::WeakPtrFactory<Initializer> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Initializer);
 };
 
 }  // namespace tether
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_COMPONENTS_TETHER_INITIALIZER_H_