Remove the configuration of Tether-associated Wi-Fi networks once connectivity is lost.

chrome/browser/chromeos/tether/tether_service.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 "chrome/browser/chromeos/tether/tether_service.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/memory/ptr_util.h"
 #include "chrome/browser/chromeos/net/tether_notification_presenter.h"
@@ skipping 40 matching lines @@
 
   auto notification_presenter =
       base::MakeUnique<chromeos::tether::TetherNotificationPresenter>(
           message_center::MessageCenter::Get(),
           chromeos::NetworkConnect::Get());
   chromeos::tether::Initializer::Init(
       ChromeCryptAuthServiceFactory::GetForBrowserContext(profile_),
       std::move(notification_presenter), profile_->GetPrefs(),
       ProfileOAuth2TokenServiceFactory::GetForProfile(profile_),
       chromeos::NetworkHandler::Get()->network_state_handler(),
+      chromeos::NetworkHandler::Get()->managed_network_configuration_handler(),
       chromeos::NetworkConnect::Get());
 }
 
 bool TetherService::IsAllowed() const {
   if (shut_down_)
     return false;
 
   return profile_->GetPrefs()->GetBoolean(prefs::kInstantTetheringAllowed);
 }
 
@@ skipping 12 matching lines @@
 }
 
 void TetherService::OnPrefsChanged() {
   if (IsAllowed() && IsEnabled()) {
     StartTether();
     return;
   }
 
   chromeos::tether::Initializer::Shutdown();
 }