QUIC - enable "delay_tcp_race" parameter by default. It was enabled

net/quic/quic_stream_factory_test.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/quic_stream_factory.h"
 
 #include <ostream>
 
 #include "base/run_loop.h"
 #include "base/strings/string_util.h"
@@ skipping 276 matching lines @@
         enable_connection_racing_(enable_connection_racing),
         enable_non_blocking_io_(true),
         disable_disk_cache_(false),
         prefer_aes_(false),
         max_number_of_lossy_connections_(0),
         packet_loss_threshold_(1.0f),
         max_disabled_reasons_(3),
         threshold_timeouts_with_open_streams_(2),
         threshold_public_resets_post_handshake_(2),
         receive_buffer_size_(0),
-        delay_tcp_race_(false),
+        delay_tcp_race_(true),
         close_sessions_on_ip_change_(false),
         disable_quic_on_timeout_with_open_streams_(false),
         idle_connection_timeout_seconds_(kIdleConnectionTimeoutSeconds),
         migrate_sessions_on_network_change_(false),
         migrate_sessions_early_(false) {
     clock_->AdvanceTime(QuicTime::Delta::FromSeconds(1));
   }
 
   ~QuicStreamFactoryTestBase() {
     // If |factory_| was initialized, then it took over ownership of |clock_|.
@@ skipping 4031 matching lines @@
   EXPECT_NE(session1, session2);
 
   EXPECT_EQ(QuicServerId(origin1_, privacy_mode_), session1->server_id());
   EXPECT_EQ(QuicServerId(origin2_, privacy_mode_), session2->server_id());
 
   EXPECT_TRUE(AllDataConsumed());
 }
 
 }  // namespace test
 }  // namespace net