Add IPAddress class as a replacement for the IPAddressNumber typedef.

net/base/ip_address.cc

+// 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.
+
+#include "net/base/ip_address.h"
+
+#include "net/base/ip_address_number.h"
+#include "url/gurl.h"
+#include "url/url_canon_ip.h"
+
+namespace net {
+
+const size_t IPAddress::kIPv4AddressSize = 4;
+const size_t IPAddress::kIPv6AddressSize = 16;
+
+IPAddress::IPAddress() {}
+
+IPAddress::~IPAddress() {}
+
+IPAddress::IPAddress(const uint8_t* address, size_t address_len)
+    : ip_address_(address, address + address_len) {}
+
+bool IPAddress::IsIPv4() const {
+  return ip_address_.size() == kIPv4AddressSize;
+}
+
+bool IPAddress::IsIPv6() const {
+  return ip_address_.size() == kIPv6AddressSize;
+}
+
+bool IPAddress::IsReserved() const {
+  return IsIPAddressReserved(ip_address_);
+}
+
+bool IPAddress::IsIPv4Mapped() const {
+  return net::IsIPv4Mapped(ip_address_);
+}
+
+std::string IPAddress::ToString() const {
+  return IPAddressToString(ip_address_);
+}
+
+// static
+bool IPAddress::FromIPLiteral(const base::StringPiece& ip_literal,
+                              IPAddress* ip_address) {
+  std::vector<uint8_t> number;
+  if (!ParseIPLiteralToNumber(ip_literal, &number))
+    return false;
+
+  std::swap(number, ip_address->ip_address_);
+  return true;
+}
+
+bool IPAddress::operator==(const IPAddress& that) const {
+  return ip_address_ == that.ip_address_;
+}
+
+bool IPAddress::operator<(const IPAddress& that) const {
+  // Sort IPv4 before IPv6.
+  if (ip_address_.size() != that.ip_address_.size()) {
+    return ip_address_.size() < that.ip_address_.size();
+  }
+
+  return ip_address_ < that.ip_address_;
+}
+
+}  // namespace net