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

chromeos/network/device_state.h

 // 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.
 
 #ifndef CHROMEOS_NETWORK_DEVICE_STATE_H_
 #define CHROMEOS_NETWORK_DEVICE_STATE_H_
 
 #include <stdint.h>
 
 #include "base/macros.h"
@@ skipping 17 matching lines @@
                        const base::Value& value) override;
   bool InitialPropertiesReceived(
       const base::DictionaryValue& properties) override;
 
   void IPConfigPropertiesChanged(const std::string& ip_config_path,
                                  const base::DictionaryValue& properties);
 
   // Accessors
   const std::string& mac_address() const { return mac_address_; }
   bool scanning() const { return scanning_; }
+  void set_scanning(bool scanning) { scanning_ = scanning; }
 
   // Cellular specific accessors
   const std::string& home_provider_id() const { return home_provider_id_; }
   bool allow_roaming() const { return allow_roaming_; }
   bool provider_requires_roaming() const { return provider_requires_roaming_; }
   bool support_network_scan() const { return support_network_scan_; }
   const std::string& technology_family() const { return technology_family_; }
   const std::string& carrier() const { return carrier_; }
   const std::string& sim_lock_type() const { return sim_lock_type_; }
   uint32_t sim_retries_left() const { return sim_retries_left_; }
@@ skipping 50 matching lines @@
 
   // Dictionary of IPConfig properties, keyed by IpConfig path.
   base::DictionaryValue ip_configs_;
 
   DISALLOW_COPY_AND_ASSIGN(DeviceState);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_NETWORK_DEVICE_STATE_H_