Add a force pipelining option to load flags.

chrome/browser/net/http_pipelining_compatibility_client.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/http_pipelining_compatibility_client.h"
 
 #include "base/metrics/histogram.h"
 #include "base/stringprintf.h"
 #include "net/base/load_flags.h"
 #include "net/disk_cache/histogram_macros.h"
@@ skipping 56 matching lines @@
     const std::string& base_url,
     const RequestInfo& info,
     HttpPipeliningCompatibilityClient* client,
     net::URLRequestContext* url_request_context)
     : request_id_(request_id),
       request_(GURL(base_url + info.filename), this),
       info_(info),
       client_(client),
       finished_(false) {
   request_.set_context(url_request_context);
-  // TODO(simonjam): Force pipelining.
   request_.set_load_flags(net::LOAD_BYPASS_CACHE |
                           net::LOAD_DISABLE_CACHE |
                           net::LOAD_DO_NOT_SAVE_COOKIES |
                           net::LOAD_DO_NOT_SEND_COOKIES |
                           net::LOAD_DO_NOT_PROMPT_FOR_LOGIN |
-                          net::LOAD_DO_NOT_SEND_AUTH_DATA);
+                          net::LOAD_DO_NOT_SEND_AUTH_DATA |
+                          net::LOAD_FORCE_HTTP_PIPELINING);
   request_.Start();
 }
 
 HttpPipeliningCompatibilityClient::Request::~Request() {
 }
 
 void HttpPipeliningCompatibilityClient::Request::OnReceivedRedirect(
     net::URLRequest* request,
     const GURL& new_url,
     bool* defer_redirect) {
@@ skipping 85 matching lines @@
     // that all pipelining errors can be detected by the network stack, then we
     // don't need to worry about broken proxies.
     client_->ReportNetworkError(request_id_, status.error());
     client_->OnRequestFinished(request_id_, NETWORK_ERROR);
     return;
   }
   client_->OnRequestFinished(request_id_, result);
 }
 
 }  // namespace chrome_browser_net