Support token based address validation in IETF QUIC.

Protected by FLAGS_quic_reloadable_flag_quic_enable_token_based_address_validation.

PiperOrigin-RevId: 346305075
Change-Id: I65c7ad821518b1c33c96018928cad03f010056f8
diff --git a/quic/core/quic_connection_stats.cc b/quic/core/quic_connection_stats.cc
index a693677..c28aa71 100644
--- a/quic/core/quic_connection_stats.cc
+++ b/quic/core/quic_connection_stats.cc
@@ -60,6 +60,9 @@
      << s.num_failed_authentication_packets_received;
   os << " num_tls_server_zero_rtt_packets_received_after_discarding_decrypter: "
      << s.num_tls_server_zero_rtt_packets_received_after_discarding_decrypter;
+  os << " address_validated_via_decrypting_packet: "
+     << s.address_validated_via_decrypting_packet;
+  os << " address_validated_via_token: " << s.address_validated_via_token;
   os << " }";
 
   return os;