Remove call to SetMaxPacketLength from QuicPacketCreator::OnSerializedPacket, as it will always be …

net/quic/core/quic_packet_creator.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_packet_creator.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/macros.h"
@@ skipping 317 matching lines @@
     const string error_details = "Failed to SerializePacket.";
     QUIC_BUG << error_details;
     delegate_->OnUnrecoverableError(QUIC_FAILED_TO_SERIALIZE_PACKET,
                                     error_details,
                                     ConnectionCloseSource::FROM_SELF);
     return;
   }
 
   delegate_->OnSerializedPacket(&packet_);
   ClearPacket();
-  // Maximum packet size may be only enacted while no packet is currently being
-  // constructed, so here we have a good opportunity to actually change it.
-  if (CanSetMaxPacketLength()) {
-    SetMaxPacketLength(max_packet_length_);
-  }
 }
 
 void QuicPacketCreator::ClearPacket() {
   packet_.has_ack = false;
   packet_.has_stop_waiting = false;
   packet_.has_crypto_handshake = NOT_HANDSHAKE;
   packet_.num_padding_bytes = 0;
   packet_.original_path_id = kInvalidPathId;
   packet_.original_packet_number = 0;
   packet_.transmission_type = NOT_RETRANSMISSION;
@@ skipping 311 matching lines @@
   // Switching path needs to update packet number length.
   UpdatePacketNumberLength(least_packet_awaited_by_peer, max_packets_in_flight);
 }
 
 bool QuicPacketCreator::IncludeNonceInPublicHeader() {
   return have_diversification_nonce_ &&
          packet_.encryption_level == ENCRYPTION_INITIAL;
 }
 
 }  // namespace net