Don't set MAC address randomization when unsupported

chromeos/network/network_device_handler_impl.h

 // Copyright 2013 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_NETWORK_DEVICE_HANDLER_IMPL_H_
 #define CHROMEOS_NETWORK_NETWORK_DEVICE_HANDLER_IMPL_H_
 
 #include <map>
 #include <string>
 
@@ skipping 116 matching lines @@
 
   void Init(NetworkStateHandler* network_state_handler);
 
   // Apply the current value of |cellular_allow_roaming_| to all existing
   // cellular devices of Shill.
   void ApplyCellularAllowRoamingToShill();
 
   // Apply the current value of |mac_addr_randomization_| to wifi devices.
   void ApplyMACAddressRandomizationToShill();
 
+  void SetMACAddressRandomizationErrorCallback(
+      const std::string& error_name,
+      std::unique_ptr<base::DictionaryValue> error_data);
+
   // Get the DeviceState for the wifi device, if any.
   const DeviceState* GetWifiDeviceState(
       const network_handler::ErrorCallback& error_callback);
 
   NetworkStateHandler* network_state_handler_;
   bool cellular_allow_roaming_;
-  bool mac_addr_randomization_;
+  bool mac_addr_randomization_supported_;
+  bool mac_addr_randomization_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkDeviceHandlerImpl);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_NETWORK_NETWORK_DEVICE_HANDLER_IMPL_H_