[CrOS Tether] Add the notion of a tether DeviceState.

chromeos/network/device_state.cc

 // Copyright (c) 2012 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/network/device_state.h"
 
 #include "base/logging.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/strings/stringprintf.h"
 #include "chromeos/network/network_event_log.h"
 #include "chromeos/network/shill_property_util.h"
+#include "chromeos/network/tether_constants.h"

[Ryan Hansberry, 2017/04/20 01:38:35]

Is this include necessary?

[Kyle Horimoto, 2017/04/20 02:16:07]

Done.

 #include "third_party/cros_system_api/dbus/service_constants.h"
 
 namespace chromeos {
 
 DeviceState::DeviceState(const std::string& path)
     : ManagedState(MANAGED_TYPE_DEVICE, path),
       allow_roaming_(false),
       provider_requires_roaming_(false),
       support_network_scan_(false),
       scanning_(false),
@@ skipping 125 matching lines @@
     }
   }
   return std::string();
 }
 
 bool DeviceState::IsSimAbsent() const {
   return technology_family_ == shill::kTechnologyFamilyGsm && !sim_present_;
 }
 
 }  // namespace chromeos