QUIC - enable "delay_tcp_race" parameter by default. This feature showed

net/http/http_stream_factory_impl_unittest.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/http/http_stream_factory_impl.h"
 
 #include <stdint.h>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 1610 matching lines @@
 
   TestBidirectionalDelegate delegate;
   stream_impl->Start(&bidi_request_info, BoundNetLog(), false, &delegate,
                      nullptr);
   delegate.WaitUntilDone();
 
   scoped_refptr<IOBuffer> buffer = new net::IOBuffer(1);
   EXPECT_EQ(OK, stream_impl->ReadData(buffer.get(), 1));
   EXPECT_EQ(kProtoQUIC1SPDY3, stream_impl->GetProtocol());
   EXPECT_EQ("200", delegate.response_headers().find(":status")->second);
-  EXPECT_EQ(1, GetSocketPoolGroupCount(session()->GetTransportSocketPool(
+  EXPECT_EQ(0, GetSocketPoolGroupCount(session()->GetTransportSocketPool(
                    HttpNetworkSession::NORMAL_SOCKET_POOL)));
-  EXPECT_EQ(1, GetSocketPoolGroupCount(session()->GetSSLSocketPool(
+  EXPECT_EQ(0, GetSocketPoolGroupCount(session()->GetSSLSocketPool(
                    HttpNetworkSession::NORMAL_SOCKET_POOL)));
   EXPECT_EQ(0, GetSocketPoolGroupCount(session()->GetTransportSocketPool(
                    HttpNetworkSession::WEBSOCKET_SOCKET_POOL)));
   EXPECT_EQ(0, GetSocketPoolGroupCount(session()->GetSSLSocketPool(
                    HttpNetworkSession::WEBSOCKET_SOCKET_POOL)));
   EXPECT_TRUE(waiter.used_proxy_info().is_direct());
 }
 
 // Tests that when QUIC is not enabled for bidirectional streaming, HTTP/2 is
 // used instead.
@@ skipping 358 matching lines @@
   EXPECT_TRUE(waiter.used_proxy_info().is_direct());
 
   // Make sure there is no orphaned job. it is already canceled.
   ASSERT_EQ(0u, static_cast<HttpStreamFactoryImpl*>(
       session->http_stream_factory_for_websocket())->num_orphaned_jobs());
 }
 
 }  // namespace
 
 }  // namespace net