[CrOS Tether] Transform NetworkConnectionHandler to an interface.

chromeos/components/tether/tether_connector_unittest.cc

 // 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.
 
 #include "chromeos/components/tether/tether_connector.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "chromeos/components/tether/connect_tethering_operation.h"
 #include "chromeos/components/tether/device_id_tether_network_guid_map.h"
@@ skipping 42 matching lines @@
   TestNetworkConnectionHandler() : NetworkConnectionHandler() {}
   ~TestNetworkConnectionHandler() override {}
 
   void CallTetherDelegate(
       const std::string& tether_network_guid,
       const base::Closure& success_callback,
       const network_handler::ErrorCallback& error_callback) {
     InitiateTetherNetworkConnection(tether_network_guid, success_callback,
                                     error_callback);
   }
+
+  // NetworkConnectionHandler:
+  void ConnectToNetwork(const std::string& service_path,
+                        const base::Closure& success_callback,
+                        const network_handler::ErrorCallback& error_callback,
+                        bool check_error_state) override {}
+
+  void DisconnectNetwork(
+      const std::string& service_path,
+      const base::Closure& success_callback,
+      const network_handler::ErrorCallback& error_callback) override {}
+
+  bool HasConnectingNetwork(const std::string& service_path) override {
+    return false;
+  }
+
+  bool HasPendingConnectRequest() override { return false; }
+
+  void Init(NetworkStateHandler* network_state_handler,
+            NetworkConfigurationHandler* network_configuration_handler,
+            ManagedNetworkConfigurationHandler*
+                managed_network_configuration_handler) override {}
 };
 
 class FakeConnectTetheringOperation : public ConnectTetheringOperation {
  public:
   FakeConnectTetheringOperation(
       const cryptauth::RemoteDevice& device_to_connect,
       BleConnectionManager* connection_manager,
       TetherHostResponseRecorder* tether_host_response_recorder)
       : ConnectTetheringOperation(device_to_connect,
                                   connection_manager,
@@ skipping 405 matching lines @@
   EXPECT_EQ(test_devices_[1].GetDeviceId(),
             fake_active_host_->GetActiveHostDeviceId());
   EXPECT_EQ(GetTetherNetworkGuid(test_devices_[1].GetDeviceId()),
             fake_active_host_->GetTetherNetworkGuid());
   EXPECT_TRUE(fake_active_host_->GetWifiNetworkGuid().empty());
 }
 
 }  // namespace tether
 
 }  // namespace chromeos