Cleaning up TODO(joi) entries in //net.

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 <vector>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 571 matching lines @@
   job_factory->SetProtocolHandler(
       chrome::kFtpScheme,
       new net::FtpProtocolHandler(
           globals_->proxy_script_fetcher_ftp_transaction_factory.get()));
 #endif
   globals_->proxy_script_fetcher_url_request_job_factory =
       job_factory.PassAs<net::URLRequestJobFactory>();
 
   globals_->throttler_manager.reset(new net::URLRequestThrottlerManager());
   globals_->throttler_manager->set_net_log(net_log_);
-  // Always done in production, disabled only for unit tests.
-  globals_->throttler_manager->set_enable_thread_checks(true);
 
   globals_->proxy_script_fetcher_context.reset(
       ConstructProxyScriptFetcherContext(globals_, net_log_));
 
   globals_->network_time_notifier.reset(
       new net::NetworkTimeNotifier(
           scoped_ptr<base::TickClock>(new base::DefaultTickClock())));
 
   sdch_manager_ = new net::SdchManager();
 
@@ skipping 362 matching lines @@
   if (command_line.HasSwitch(switches::kDisableQuic))
     return false;
 
   if (command_line.HasSwitch(switches::kEnableQuic) ||
       command_line.HasSwitch(switches::kEnableQuicHttps)) {
     return true;
   }
 
   return quic_trial_group == kQuicFieldTrialEnabledGroupName;
 }