MergeNetworkList can't group address under the same interface

net/base/net_util.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/net_util.h"
 
 #include <errno.h>
 #include <string.h>
 
 #include <algorithm>
@@ skipping 986 matching lines @@
 NetworkInterface::NetworkInterface()
     : type(NetworkChangeNotifier::CONNECTION_UNKNOWN),
       network_prefix(0) {
 }
 
 NetworkInterface::NetworkInterface(const std::string& name,
                                    const std::string& friendly_name,
                                    uint32 interface_index,
                                    NetworkChangeNotifier::ConnectionType type,
                                    const IPAddressNumber& address,
-                                   size_t network_prefix)
+                                   unsigned int network_prefix)
     : name(name),
       friendly_name(friendly_name),
       interface_index(interface_index),
       type(type),
       address(address),
       network_prefix(network_prefix) {
 }
 
 NetworkInterface::~NetworkInterface() {
 }
@@ skipping 14 matching lines @@
   }
   return a1.size() * CHAR_BIT;
 }
 
 unsigned MaskPrefixLength(const IPAddressNumber& mask) {
   IPAddressNumber all_ones(mask.size(), 0xFF);
   return CommonPrefixLength(mask, all_ones);
 }
 
 }  // namespace net