NQE: Use ResponseHeaders to get the HTTP status code

net/nqe/network_quality_estimator.cc

 // Copyright 2015 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/nqe/network_quality_estimator.h"
 
 #include <algorithm>
 #include <cmath>
 #include <limits>
 #include <utility>
@@ skipping 11 matching lines @@
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/time/default_tick_clock.h"
 #include "base/trace_event/trace_event.h"
 #include "build/build_config.h"
 #include "net/base/load_flags.h"
 #include "net/base/load_timing_info.h"
 #include "net/base/network_interfaces.h"
 #include "net/base/url_util.h"
+#include "net/http/http_response_headers.h"
+#include "net/http/http_response_info.h"
 #include "net/http/http_status_code.h"
 #include "net/nqe/network_quality_estimator_params.h"
 #include "net/nqe/socket_watcher_factory.h"
 #include "net/nqe/throughput_analyzer.h"
 #include "net/url_request/url_request.h"
 #include "net/url_request/url_request_status.h"
 #include "url/gurl.h"
 
 #if defined(OS_ANDROID)
 #include "net/android/cellular_signal_strength.h"
@@ skipping 521 matching lines @@
   // If the load timing info is unavailable, it probably means that the request
   // did not go over the network.
   if (load_timing_info.send_start.is_null() ||
       load_timing_info.receive_headers_end.is_null()) {
     return;
   }
 
   // Record UMA only for successful requests that have completed.
   if (net_error != OK)
     return;
-  if (request.GetResponseCode() != HTTP_OK)
+  if (!request.response_info().headers.get() ||
+      request.response_info().headers->response_code() != HTTP_OK) {
     return;
+  }
   if (load_timing_info.receive_headers_end < last_main_frame_request_)
     return;
 
   const base::TimeTicks now = tick_clock_->NowTicks();
   // Record UMA only for requests that started recently.
   if (now - last_main_frame_request_ > base::TimeDelta::FromSeconds(15))
     return;
 
   DCHECK_GE(now, load_timing_info.send_start);
 
@@ skipping 929 matching lines @@
 void NetworkQualityEstimator::OnPrefsRead(
     const std::map<nqe::internal::NetworkID,
                    nqe::internal::CachedNetworkQuality> read_prefs) {
   DCHECK(thread_checker_.CalledOnValidThread());
   UMA_HISTOGRAM_COUNTS("NQE.Prefs.ReadSize", read_prefs.size());
   // TODO(tbansal): crbug.com/490870. Incorporate the network quality into the
   // current estimates.
 }
 
 }  // namespace net