gfe-relnote: In QUIC, only vlidate destination_connection_id_length and source_connection_id_length when should_update_expected_connection_id_length is false. No functional change expected, not protected.

PiperOrigin-RevId: 248557691
Change-Id: Id5e9a91428c3658e3801d85bc0c67ff61b4b6b3b

quic/core/quic_framer.cc

diff --git a/quic/core/quic_framer.cc b/quic/core/quic_framer.cc
index b686068..27af834 100644
--- a/quic/core/quic_framer.cc
+++ b/quic/core/quic_framer.cc
@@ -2640,9 +2640,9 @@
   if (scil != 0) {
     scil += kConnectionIdLengthAdjustment;
   }
-  if ((dcil != *destination_connection_id_length ||
+  if (!should_update_expected_connection_id_length &&
+      (dcil != *destination_connection_id_length ||
        scil != *source_connection_id_length) &&
-      !should_update_expected_connection_id_length &&
       !QuicUtils::VariableLengthConnectionIdAllowedForVersion(
           version.transport_version)) {
     // TODO(dschinazi): use the framer's version once the