In QUIC version >= 38, enables random padding of size [1, 256]

net/quic/test_tools/simulator/quic_endpoint.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/test_tools/simulator/quic_endpoint.h"
 
 #include "base/sha1.h"
 #include "net/quic/core/crypto/crypto_handshake_message.h"
 #include "net/quic/core/crypto/crypto_protocol.h"
 #include "net/quic/platform/api/quic_ptr_util.h"
@@ skipping 215 matching lines @@
     const size_t transmission_size =
         std::min(kWriteChunkSize, bytes_to_transfer_);
     memset(transmission_buffer_.get(), kStreamDataContents, transmission_size);
 
     iovec iov;
     iov.iov_base = transmission_buffer_.get();
     iov.iov_len = transmission_size;
 
     QuicIOVector io_vector(&iov, 1, transmission_size);
     QuicConsumedData consumed_data = connection_.SendStreamData(
-        kDataStream, io_vector, bytes_transferred_, false, nullptr);
+        kDataStream, io_vector, bytes_transferred_, NO_FIN, nullptr);
 
     DCHECK(consumed_data.bytes_consumed <= transmission_size);
     bytes_transferred_ += consumed_data.bytes_consumed;
     bytes_to_transfer_ -= consumed_data.bytes_consumed;
     if (consumed_data.bytes_consumed != transmission_size) {
       return;
     }
   }
 }
 
@@ skipping 20 matching lines @@
   return this;
 }
 void QuicEndpointMultiplexer::SetTxPort(ConstrainedPortInterface* port) {
   for (auto& key_value_pair : mapping_) {
     key_value_pair.second->SetTxPort(port);
   }
 }
 
 }  // namespace simulator
 }  // namespace net