[CrOS Tether] Create TetherDisconnector, which disconnects from active tethering sessions.

chromeos/components/tether/tether_connector.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_TETHER_CONNECTOR_H_
 #define CHROMEOS_COMPONENTS_TETHER_TETHER_CONNECTOR_H_
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "chromeos/components/tether/connect_tethering_operation.h"
@@ skipping 10 matching lines @@
 class DeviceIdTetherNetworkGuidMap;
 class TetherHostFetcher;
 class TetherHostResponseRecorder;
 class WifiHotspotConnector;
 
 // Connects to a tether network. When the user initiates a connection via the
 // UI, TetherConnector receives a callback from NetworkConnectionHandler and
 // initiates a connection by starting a ConnectTetheringOperation. When a
 // response has been received from the tether host, TetherConnector connects to
 // the associated Wi-Fi network.
-class TetherConnector : public NetworkConnectionHandler::TetherDelegate,
-                        public ConnectTetheringOperation::Observer {
+class TetherConnector : public ConnectTetheringOperation::Observer {
  public:
   TetherConnector(
-      NetworkConnectionHandler* network_connection_handler,
       NetworkStateHandler* network_state_handler,
       WifiHotspotConnector* wifi_hotspot_connector,
       ActiveHost* active_host,
       TetherHostFetcher* tether_host_fetcher,
       BleConnectionManager* connection_manager,
       TetherHostResponseRecorder* tether_host_response_recorder,
       DeviceIdTetherNetworkGuidMap* device_id_tether_network_guid_map);
-  ~TetherConnector() override;
+  virtual ~TetherConnector();
 
-  // NetworkConnectionHandler::TetherDelegate:
-  void ConnectToNetwork(
+  virtual void ConnectToNetwork(
       const std::string& tether_network_guid,
       const base::Closure& success_callback,
-      const network_handler::StringResultCallback& error_callback) override;
+      const network_handler::StringResultCallback& error_callback);
+
+  // Returns whether the connection attempt was successfully canceled.
+  virtual bool CancelConnectionAttempt(const std::string& tether_network_guid);
 
   // ConnectTetheringOperation::Observer:
   void OnSuccessfulConnectTetheringResponse(
       const cryptauth::RemoteDevice& remote_device,
       const std::string& ssid,
       const std::string& password) override;
   void OnConnectTetheringFailure(
       const cryptauth::RemoteDevice& remote_device,
       ConnectTetheringResponse_ResponseCode error_code) override;
 
  private:
   friend class TetherConnectorTest;
 
-  void SetConnectionFailed();
+  void SetConnectionFailed(const std::string& error_name);
   void SetConnectionSucceeded(const std::string& device_id,
                               const std::string& wifi_network_guid);
 
   void OnTetherHostToConnectFetched(
       const std::string& device_id,
       std::unique_ptr<cryptauth::RemoteDevice> tether_host_to_connect);
   void OnWifiConnection(const std::string& device_id,
                         const std::string& wifi_network_guid);
 
   NetworkConnectionHandler* network_connection_handler_;
@@ skipping 12 matching lines @@
   base::WeakPtrFactory<TetherConnector> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TetherConnector);
 };
 
 }  // namespace tether
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_COMPONENTS_TETHER_TETHER_CONNECTOR_H_