Move some net::IPAddressNumber implementations 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 57 matching lines @@
   // Returns true if the IP has |kIPv4AddressSize| elements.
   bool IsIPv4() const;
 
   // Returns true if the IP has |kIPv6AddressSize| elements.
   bool IsIPv6() const;
 
   // Returns true if the IP is either an IPv4 or IPv6 address. This function
   // only checks the address length.
   bool IsValid() const;
 
-  // Returns true if an IP address hostname is in a range reserved by the IANA.
+  // Returns true if the IP is in a range reserved by the IANA.
   // Works with both IPv4 and IPv6 addresses, and only compares against a given
   // protocols's reserved ranges.
   bool IsReserved() const;
 
   // Returns true if the IP is "zero" (e.g. the 0.0.0.0 IPv4 address).
   bool IsZero() const;
 
   // Returns true if |ip_address_| is an IPv4-mapped IPv6 address.
   bool IsIPv4MappedIPv6() const;
 
@@ skipping 113 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_