Fix QUIC warnings in preparation for enabling them

gfe-relnote: n/a, compilation-only change
PiperOrigin-RevId: 253893322
Change-Id: I15917a1c5b325922850086277cfad5e3b4da20a4
diff --git a/quic/core/quic_unacked_packet_map.cc b/quic/core/quic_unacked_packet_map.cc
index 5b3de44..513eb36 100644
--- a/quic/core/quic_unacked_packet_map.cc
+++ b/quic/core/quic_unacked_packet_map.cc
@@ -422,7 +422,7 @@
 }
 
 void QuicUnackedPacketMap::NotifyFramesLost(const QuicTransmissionInfo& info,
-                                            TransmissionType type) {
+                                            TransmissionType /*type*/) {
   DCHECK(session_decides_what_to_write_);
   for (const QuicFrame& frame : info.retransmittable_frames) {
     session_notifier_->OnFrameLost(frame);