This adds Cros API for calling the "Refresh" function on shill's

chrome/browser/chromeos/cros/network_library_impl_stub.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 CHROME_BROWSER_CHROMEOS_CROS_NETWORK_LIBRARY_IMPL_STUB_H_
 #define CHROME_BROWSER_CHROMEOS_CROS_NETWORK_LIBRARY_IMPL_STUB_H_
 
 #include "chrome/browser/chromeos/cros/network_library_impl_base.h"
 
 namespace chromeos {
@@ skipping 49 matching lines @@
 
   virtual void RequestCellularScan() OVERRIDE;
   virtual void RequestCellularRegister(
       const std::string& network_id) OVERRIDE;
   virtual void SetCellularDataRoamingAllowed(bool new_value) OVERRIDE;
   virtual bool IsCellularAlwaysInRoaming() OVERRIDE;
   virtual void RequestNetworkScan() OVERRIDE;
 
   virtual bool GetWifiAccessPoints(WifiAccessPointVector* result) OVERRIDE;
 
+  virtual void RefreshIPConfig(Network* network) OVERRIDE;
+
   virtual void DisconnectFromNetwork(const Network* network) OVERRIDE;
 
   virtual void EnableOfflineMode(bool enable) OVERRIDE;
 
   virtual NetworkIPConfigVector GetIPConfigs(
       const std::string& device_path,
       std::string* hardware_address,
       HardwareAddressFormat format) OVERRIDE;
   virtual void SetIPConfig(const NetworkIPConfig& ipconfig) OVERRIDE;
 
@@ skipping 13 matching lines @@
   WifiNetworkVector disabled_wifi_networks_;
   CellularNetworkVector disabled_cellular_networks_;
   WimaxNetworkVector disabled_wimax_networks_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkLibraryImplStub);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_CROS_NETWORK_LIBRARY_IMPL_STUB_H_