Add support for MAC address randomization

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 71 matching lines @@
       const network_handler::ErrorCallback& error_callback) override;
 
   void ChangePin(const std::string& device_path,
                  const std::string& old_pin,
                  const std::string& new_pin,
                  const base::Closure& callback,
                  const network_handler::ErrorCallback& error_callback) override;
 
   void SetCellularAllowRoaming(bool allow_roaming) override;
 
+  void SetMACAddressRandomizationEnabled(bool enabled) override;
+
   void SetWifiTDLSEnabled(
       const std::string& ip_or_mac_address,
       bool enabled,
       const network_handler::StringResultCallback& callback,
       const network_handler::ErrorCallback& error_callback) override;
 
   void GetWifiTDLSStatus(
       const std::string& ip_or_mac_address,
       const network_handler::StringResultCallback& callback,
       const network_handler::ErrorCallback& error_callback) override;
@@ skipping 20 matching lines @@
   friend class NetworkDeviceHandlerTest;
 
   NetworkDeviceHandlerImpl();
 
   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();
+
   // 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_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkDeviceHandlerImpl);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_NETWORK_NETWORK_DEVICE_HANDLER_IMPL_H_