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/test_tools/simple_session_notifier.h b/quic/test_tools/simple_session_notifier.h
index aab3769..7424053 100644
--- a/quic/test_tools/simple_session_notifier.h
+++ b/quic/test_tools/simple_session_notifier.h
@@ -67,7 +67,7 @@
   bool OnFrameAcked(const QuicFrame& frame,
                     QuicTime::Delta ack_delay_time,
                     QuicTime receive_timestamp) override;
-  void OnStreamFrameRetransmitted(const QuicStreamFrame& frame) override {}
+  void OnStreamFrameRetransmitted(const QuicStreamFrame& /*frame*/) override {}
   void OnFrameLost(const QuicFrame& frame) override;
   void RetransmitFrames(const QuicFrames& frames,
                         TransmissionType type) override;