[CrOS Tether] Create HostScanDevicePrioritizer, a class which prioritizes the order of connection a…

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";
+
+}  // namespace prefs
+
+}  // namespace tether
+
+}  // namespace chromeos