QUIC - added disable_delay_tcp_race field trial param to disable

chrome/browser/io_thread.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 "chrome/browser/io_thread.h"
 
 #include <utility>
 #include <vector>
 
 #include "base/base64.h"
@@ skipping 1433 matching lines @@
                                           "receive_buffer_size"),
                         &value)) {
     return value;
   }
   return 0;
 }
 
 // static
 bool IOThread::NetworkSessionConfigurator::ShouldQuicDelayTcpRace(
     const VariationParameters& quic_trial_params) {
-  return base::LowerCaseEqualsASCII(
-      GetVariationParam(quic_trial_params, "delay_tcp_race"), "true");
+  return !base::LowerCaseEqualsASCII(
+      GetVariationParam(quic_trial_params, "disable_delay_tcp_race"), "true");
 }
 
 // static
 bool IOThread::NetworkSessionConfigurator::ShouldQuicCloseSessionsOnIpChange(
     const VariationParameters& quic_trial_params) {
   return base::LowerCaseEqualsASCII(
       GetVariationParam(quic_trial_params, "close_sessions_on_ip_change"),
       "true");
 }
 
@@ skipping 241 matching lines @@
   // TODO(rtenneti): We should probably use HttpServerPropertiesManager for the
   // system URLRequestContext too. There's no reason this should be tied to a
   // profile.
   return context;
 }
 
 const metrics::UpdateUsagePrefCallbackType&
 IOThread::GetMetricsDataUseForwarder() {
   return metrics_data_use_forwarder_;
 }