gfe-relnote: In QUIC, add code counts for RTT status when cwnd gets bootstrapped. Not protected.

PiperOrigin-RevId: 251465876
Change-Id: I465323d7d0fd95f9266f8837055f951e1fec2c72
diff --git a/quic/core/quic_constants.h b/quic/core/quic_constants.h
index caac2c7..913c063 100644
--- a/quic/core/quic_constants.h
+++ b/quic/core/quic_constants.h
@@ -236,6 +236,9 @@
 // Maximum length allowed for the token in a NEW_TOKEN frame.
 const size_t kMaxNewTokenTokenLength = 0xffff;
 
+// Default initial rtt used before any samples are received.
+const int kInitialRttMs = 100;
+
 // Packet number of first sending packet of a connection. Please note, this
 // cannot be used as first received packet because peer can choose its starting
 // packet number.