Let QUIC_VERSION_38 support IETF PADDING frame (1 byte frame with type 0x00) and respect NSTP conne…

net/quic/core/quic_connection.cc

 // Copyright (c) 2012 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/core/quic_connection.h"
 
 #include <string.h>
 #include <sys/types.h>
 
 #include <algorithm>
@@ skipping 328 matching lines @@
     ack_decimation_delay_ = kShortAckDecimationDelay;
   }
   if (config.HasClientSentConnectionOption(kAKD4, perspective_)) {
     ack_mode_ = ACK_DECIMATION_WITH_REORDERING;
     ack_decimation_delay_ = kShortAckDecimationDelay;
   }
   if (config.HasClientSentConnectionOption(k5RTO, perspective_)) {
     close_connection_after_five_rtos_ = true;
   }
   if (packet_generator_.latched_flag_no_stop_waiting_frames() &&
+      version() > QUIC_VERSION_37 &&
       config.HasClientSentConnectionOption(kNSTP, perspective_)) {
     QUIC_FLAG_COUNT_N(quic_reloadable_flag_quic_no_stop_waiting_frames, 2, 2);
     no_stop_waiting_frames_ = true;
   }
 }
 
 void QuicConnection::OnSendConnectionState(
     const CachedNetworkParameters& cached_network_params) {
   if (debug_visitor_ != nullptr) {
     debug_visitor_->OnSendConnectionState(cached_network_params);
@@ skipping 2027 matching lines @@
 
 void QuicConnection::CheckIfApplicationLimited() {
   if (queued_packets_.empty() &&
       !sent_packet_manager_.HasPendingRetransmissions() &&
       !visitor_->WillingAndAbleToWrite()) {
     sent_packet_manager_.OnApplicationLimited();
   }
 }
 
 }  // namespace net