Call SetDefaults from the QuicConfig constructor instead of requiring

net/quic/quic_config.cc

 // Copyright (c) 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/quic_config.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "net/quic/crypto/crypto_handshake_message.h"
@@ skipping 426 matching lines @@
       initial_round_trip_time_us_(kIRTT, PRESENCE_OPTIONAL),
       // TODO(rjshade): Remove this when retiring QUIC_VERSION_19.
       initial_flow_control_window_bytes_(kIFCW, PRESENCE_OPTIONAL),
       // TODO(rjshade): Make this PRESENCE_REQUIRED when retiring
       // QUIC_VERSION_19.
       initial_stream_flow_control_window_bytes_(kSFCW, PRESENCE_OPTIONAL),
       // TODO(rjshade): Make this PRESENCE_REQUIRED when retiring
       // QUIC_VERSION_19.
       initial_session_flow_control_window_bytes_(kCFCW, PRESENCE_OPTIONAL),
       socket_receive_buffer_(kSRBF, PRESENCE_OPTIONAL) {
+  SetDefaults();
 }
 
 QuicConfig::~QuicConfig() {}
 
 void QuicConfig::SetCongestionFeedback(
     const QuicTagVector& congestion_feedback,
     QuicTag default_congestion_feedback) {
   congestion_feedback_.set(congestion_feedback, default_congestion_feedback);
 }
 
@@ skipping 256 matching lines @@
         peer_hello, hello_type, error_details);
   }
   if (error == QUIC_NO_ERROR) {
     error = connection_options_.ProcessPeerHello(
         peer_hello, hello_type, error_details);
   }
   return error;
 }
 
 }  // namespace net