Add TechnologyState to NetworkStateHandler.

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 "chromeos/network/managed_state.h"
 
 namespace chromeos {
 
 // Simple class to provide device state information. Similar to NetworkState;
 // see network_state.h for usage guidelines.
 class CHROMEOS_EXPORT DeviceState : public ManagedState {
  public:
   explicit DeviceState(const std::string& path);
   virtual ~DeviceState();
 
   // ManagedState overrides
   virtual bool PropertyChanged(const std::string& key,
                                const base::Value& value) OVERRIDE;
 
   // Accessors
   const std::string& mac_address() const { return mac_address_; }
   bool provider_requires_roaming() const { return provider_requires_roaming_; }
   bool support_network_scan() const { return support_network_scan_; }
   bool scanning() const { return scanning_; }
+  std::string sim_lock_type() const { return sim_lock_type_; }
+
+  // Returns true if the technology family is GSM and sim_present_ is false.
+  bool IsSimAbsent() const;
 
  private:
   // Common Device Properties
   std::string mac_address_;
   // Cellular specific propeties
   std::string home_provider_id_;
   bool provider_requires_roaming_;
   bool support_network_scan_;
   bool scanning_;
+  std::string technology_family_;
+  std::string sim_lock_type_;
+  bool sim_present_;
 
   DISALLOW_COPY_AND_ASSIGN(DeviceState);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_NETWORK_DEVICE_STATE_H_