relnote: Re-enable strike register lookups for QUIC replay protection, until at least QUIC_VERSION_…

net/quic/crypto/quic_crypto_server_config.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/quic/crypto/quic_crypto_server_config.h"
 
 #include <stdlib.h>
 
 #include <algorithm>
 
@@ skipping 1072 matching lines @@
     if (FLAGS_use_early_return_when_verifying_chlo) {
       helper.ValidationComplete(QUIC_NO_ERROR, "");
       return;
     }
     found_error = true;
   }
 
   // Server nonce is optional, and used for key derivation if present.
   client_hello.GetStringPiece(kServerNonceTag, &info->server_nonce);
 
-  if (version > QUIC_VERSION_26) {
-    DVLOG(1) << "No 0-RTT replay protection in QUIC_VERSION_27 and higher.";
+  if (version > QUIC_VERSION_30) {
+    DVLOG(1) << "No 0-RTT replay protection in QUIC_VERSION_31 and higher.";
     // If the server nonce is empty and we're requiring handshake confirmation
     // for DoS reasons then we must reject the CHLO.
     if (FLAGS_quic_require_handshake_confirmation &&
         info->server_nonce.empty()) {
       info->reject_reasons.push_back(SERVER_NONCE_REQUIRED_FAILURE);
     }
     helper.ValidationComplete(QUIC_NO_ERROR, "");
     return;
   }
 
@@ skipping 688 matching lines @@
       is_primary(false),
       primary_time(QuicWallTime::Zero()),
       priority(0),
       source_address_token_boxer(nullptr) {}
 
 QuicCryptoServerConfig::Config::~Config() {
   STLDeleteElements(&key_exchanges);
 }
 
 }  // namespace net