Revert 256579 "Allow the content browser client to specify a spe..."

trunk/src/chrome/browser/net/connection_tester.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/net/connection_tester.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/logging.h"
@@ skipping 394 matching lines @@
   if (status == net::OK)
     status = request_context_->Init(experiment,
                                     proxy_config_service,
                                     net_log_);
   if (status != net::OK) {
     tester_->OnExperimentCompleted(status);
     return;
   }
   // Fetch a request using the experimental context.
   request_ = request_context_->CreateRequest(
-      experiment.url, net::DEFAULT_PRIORITY, this, NULL);
+      experiment.url, net::DEFAULT_PRIORITY, this);
   request_->Start();
 }
 
 void ConnectionTester::TestRunner::Run(const Experiment& experiment) {
   // Try to create a net::URLRequestContext for this experiment.
   request_context_.reset(
       new ExperimentURLRequestContext(tester_->proxy_request_context_));
   scoped_ptr<net::ProxyConfigService>* proxy_config_service =
       new scoped_ptr<net::ProxyConfigService>();
   base::Callback<void(int)> config_service_callback =
@@ skipping 108 matching lines @@
 
   // Notify the delegate of completion.
   delegate_->OnCompletedConnectionTestExperiment(current, result);
 
   if (remaining_experiments_.empty()) {
     delegate_->OnCompletedConnectionTestSuite();
   } else {
     StartNextExperiment();
   }
 }