gfe-relnote: In QUIC, add unused HANDSHAKE encryption level. No functional change expected, not protected.

PiperOrigin-RevId: 238661434
Change-Id: Ia1e1d2be2d6a46f3981afae6628877242fbabf24
diff --git a/quic/core/quic_trace_visitor.cc b/quic/core/quic_trace_visitor.cc
index 9c69044..2c5b06d 100644
--- a/quic/core/quic_trace_visitor.cc
+++ b/quic/core/quic_trace_visitor.cc
@@ -14,6 +14,8 @@
   switch (level) {
     case ENCRYPTION_NONE:
       return quic_trace::ENCRYPTION_INITIAL;
+    case ENCRYPTION_HANDSHAKE:
+      return quic_trace::ENCRYPTION_HANDSHAKE;
     case ENCRYPTION_ZERO_RTT:
       return quic_trace::ENCRYPTION_0RTT;
     case ENCRYPTION_FORWARD_SECURE: