[CrOS Tether] Create the ActiveHost class, which stores metadata related to the current connection …

chromeos/components/tether/pref_names.cc

 // 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.
 
 #include "chromeos/components/tether/pref_names.h"
 
 namespace chromeos {
 
 namespace tether {
 
 namespace prefs {
 
 const char kMostRecentTetherAvailablilityResponderIds[] =
     "tether.most_recent_tether_availability_responder_ids";
 
 const char kMostRecentConnectTetheringResponderId[] =
     "tether.most_recent_connect_tethering_responder_ids";
 
+const char kActiveHostStatus[] = "tether.active_host_status";
+
+const char kActiveHostDeviceId[] = "tether.active_host_device_id";
+
+const char kWifiNetworkId[] = "tether.wifi_network_id";
+
 }  // namespace prefs
 
 }  // namespace tether
 
 }  // namespace chromeos