Use the exact-width integer types defined in <stdint.h> rather than

net/base/network_interfaces.cc

 // 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.
 
 #include "net/base/network_interfaces.h"
 
 namespace net {
 
 NetworkInterface::NetworkInterface()
     : type(NetworkChangeNotifier::CONNECTION_UNKNOWN), prefix_length(0) {
 }
 
 NetworkInterface::NetworkInterface(const std::string& name,
                                    const std::string& friendly_name,
-                                   uint32 interface_index,
+                                   uint32_t interface_index,
                                    NetworkChangeNotifier::ConnectionType type,
                                    const IPAddressNumber& address,
-                                   uint32 prefix_length,
+                                   uint32_t prefix_length,
                                    int ip_address_attributes)
     : name(name),
       friendly_name(friendly_name),
       interface_index(interface_index),
       type(type),
       address(address),
       prefix_length(prefix_length),
       ip_address_attributes(ip_address_attributes) {
 }
 
 NetworkInterface::~NetworkInterface() {
 }
 
 ScopedWifiOptions::~ScopedWifiOptions() {
 }
 
 }  // namespace net