Tether: record each type of host connection result.

chromeos/components/tether/tether_disconnector_impl_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_disconnector_impl.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 92 matching lines @@
  public:
   TestTetherConnector()
       : TetherConnector(nullptr /* network_state_handler */,
                         nullptr /* wifi_hotspot_connector */,
                         nullptr /* active_host */,
                         nullptr /* tether_host_fetcher */,
                         nullptr /* connection_manager */,
                         nullptr /* tether_host_response_recorder */,
                         nullptr /* device_id_tether_network_guid_map */,
                         nullptr /* host_scan_cache */,
-                        nullptr /* notification_presenter */),
+                        nullptr /* notification_presenter */,
+                        nullptr /* host_connection_metrics_logger */),
         should_cancel_successfully_(true) {}
   ~TestTetherConnector() override {}
 
   void set_should_cancel_successfully(bool should_cancel_successfully) {
     should_cancel_successfully_ = should_cancel_successfully;
   }
 
   std::string last_canceled_tether_network_guid() {
     return last_canceled_tether_network_guid_;
   }
@@ skipping 549 matching lines @@
       test_pref_service_.get());
   EXPECT_EQ(
       kWifiNetworkGuid,
       fake_network_configuration_remover_->last_removed_wifi_network_guid());
   EXPECT_TRUE(GetDisconnectingWifiGuidFromPrefs().empty());
 }
 
 }  // namespace tether
 
 }  // namespace chromeos