Migrate net::IPAddressList to net::IPAddress.

net/base/ip_address.h

 // Copyright (c) 2015 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 NET_BASE_IP_ADDRESS_NET_H_
 #define NET_BASE_IP_ADDRESS_NET_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 87 matching lines @@
   bool operator<(const IPAddress& that) const;
 
  private:
   // IPv4 addresses will have length kIPv4AddressSize, whereas IPv6 address
   // will have length kIPv6AddressSize.
   std::vector<uint8_t> ip_address_;
 
   // This class is copyable and assignable.
 };
 
+using IPAddressList = std::vector<IPAddress>;
+
 // TODO(Martijnc): These utility functions currently forward the calls to
 // the IPAddressNumber implementations. Move the implementations over when
 // the IPAddressNumber migration is complete. https://crbug.com/496258.
 
 // Returns the canonical string representation of an IP address along with its
 // port. For example: "192.168.0.1:99" or "[::1]:80".
 NET_EXPORT std::string IPAddressToStringWithPort(const IPAddress& address,
                                                  uint16_t port);
 
 // Returns the address as a sequence of bytes in network-byte-order.
@@ skipping 27 matching lines @@
 template <size_t N>
 bool IPAddressStartsWith(const IPAddress& address, const uint8_t (&prefix)[N]) {
   if (address.size() < N)
     return false;
   return std::equal(prefix, prefix + N, address.bytes().begin());
 }
 
 }  // namespace net
 
 #endif  // NET_BASE_IP_ADDRESS_NET_H_