Construct QuicSocketAddressImpl in QuicChromiumPacketReadder and pass it by const&.

net/quic/platform/api/quic_socket_address.cc

Index: net/quic/platform/api/quic_socket_address.cc
diff --git a/net/quic/platform/api/quic_socket_address.cc b/net/quic/platform/api/quic_socket_address.cc
index 43ffa343e74276cb99534f5c64947e7cb9702144..fb08034fb38a119c95212235003f5701bbbf4cca 100644
--- a/net/quic/platform/api/quic_socket_address.cc
+++ b/net/quic/platform/api/quic_socket_address.cc
@@ -20,11 +20,11 @@ QuicSocketAddress::QuicSocketAddress(const struct sockaddr& saddr)
 QuicSocketAddress::QuicSocketAddress(const QuicSocketAddressImpl& impl)
     : impl_(impl) {}
 
-bool operator==(QuicSocketAddress lhs, QuicSocketAddress rhs) {
+bool operator==(const QuicSocketAddress& lhs, const QuicSocketAddress& rhs) {
   return lhs.impl_ == rhs.impl_;
 }
 
-bool operator!=(QuicSocketAddress lhs, QuicSocketAddress rhs) {
+bool operator!=(const QuicSocketAddress& lhs, const QuicSocketAddress& rhs) {
   return lhs.impl_ != rhs.impl_;
 }