Change IPEndpoint::address() to return a net::IPAddress

net/quic/quic_socket_address_coder.cc

Index: net/quic/quic_socket_address_coder.cc
diff --git a/net/quic/quic_socket_address_coder.cc b/net/quic/quic_socket_address_coder.cc
index bd28353e8640fc19d8cd6fd6169d8b7ee635b21b..d3e65036bb7e76b1f16f917bfdadf13250931983 100644
--- a/net/quic/quic_socket_address_coder.cc
+++ b/net/quic/quic_socket_address_coder.cc
@@ -41,7 +41,7 @@ string QuicSocketAddressCoder::Encode() const {
   }
   serialized.append(reinterpret_cast<const char*>(&address_family),
                     sizeof(address_family));
-  serialized.append(IPAddressToPackedString(address_.address()));
+  serialized.append(IPAddressToPackedString(address_.address_number()));
   uint16_t port = address_.port();
   serialized.append(reinterpret_cast<const char*>(&port), sizeof(port));
   return serialized;