This updates the StaticIP configuration UI to match new mocks.

chrome/browser/chromeos/cros/network_ip_config.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_IP_CONFIG_H_
 #define CHROME_BROWSER_CHROMEOS_CROS_NETWORK_IP_CONFIG_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 15 matching lines @@
 
 // IP Configuration.
 struct NetworkIPConfig {
   NetworkIPConfig(const std::string& device_path, IPConfigType type,
                   const std::string& address, const std::string& netmask,
                   const std::string& gateway, const std::string& name_servers);
   ~NetworkIPConfig();
 
   std::string ToString() const;
 
-  // Gets the PrefixLength for an IPv4 netmask.
-  // For example, "255.255.255.0" => 24
-  // If the netmask is invalid, this will return -1;
-  // TODO(chocobo): Add support for IPv6.
-  int32 GetPrefixLength() const;
   std::string device_path;  // This looks like "/device/0011aa22bb33"
   IPConfigType type;
   std::string address;
   std::string netmask;
   std::string gateway;
   std::string name_servers;
 };
 
 typedef std::vector<NetworkIPConfig> NetworkIPConfigVector;
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_CROS_NETWORK_IP_CONFIG_H_