Record data use of favicon

components/data_use_measurement/core/data_use_measurement.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 "components/data_use_measurement/core/data_use_measurement.h"
 
 #include "base/metrics/histogram_macros.h"
 #include "base/metrics/sparse_histogram.h"
 #include "base/strings/stringprintf.h"
 #include "build/build_config.h"
 #include "components/data_use_measurement/core/data_use_ascriber.h"
 #include "components/data_use_measurement/core/data_use_recorder.h"
 #include "components/data_use_measurement/core/data_use_user_data.h"
 #include "components/data_use_measurement/core/url_request_classifier.h"
 #include "components/domain_reliability/uploader.h"
 #include "google_apis/gaia/gaia_auth_util.h"
 #include "net/base/network_change_notifier.h"
 #include "net/base/upload_data_stream.h"
 #include "net/http/http_response_headers.h"
+#include "net/http/http_status_code.h"
 #include "net/url_request/url_request.h"
 
 #if defined(OS_ANDROID)
 #include "net/android/traffic_stats.h"
 #endif
 
 namespace data_use_measurement {
 
 namespace {
 
@@ skipping 28 matching lines @@
   base::HistogramBase* histogram_pointer = base::Histogram::FactoryTimeGet(
       name,
       base::TimeDelta::FromMilliseconds(1),  // Minimum sample
       base::TimeDelta::FromHours(1),         // Maximum sample
       50,                                    // Bucket count.
       base::HistogramBase::kUmaTargetedHistogramFlag);
   histogram_pointer->AddCount(latency.InMilliseconds(), count);
 }
 #endif
 
+void RecordFavIconDataUse(const net::URLRequest& request) {
+  UMA_HISTOGRAM_COUNTS_100000(
+      "DataUse.FavIcon.Downstream",
+      request.was_cached() ? 0 : request.GetTotalReceivedBytes());
+  if (request.status().is_success() &&
+      request.GetResponseCode() != net::HTTP_OK) {
+    UMA_HISTOGRAM_COUNTS_100000("DataUse.FavIcon.Downstream.Non200Response",
+                                request.GetTotalReceivedBytes());
+  }
+}
+
 }  // namespace
 
 DataUseMeasurement::DataUseMeasurement(
     std::unique_ptr<URLRequestClassifier> url_request_classifier,
     const metrics::UpdateUsagePrefCallbackType& metrics_data_use_forwarder,
     DataUseAscriber* ascriber)
     : url_request_classifier_(std::move(url_request_classifier)),
       metrics_data_use_forwarder_(metrics_data_use_forwarder),
       ascriber_(ascriber)
 #if defined(OS_ANDROID)
@@ skipping 47 matching lines @@
     data_use_user_data->set_app_state(CurrentAppState());
   }
 }
 
 void DataUseMeasurement::OnBeforeRedirect(const net::URLRequest& request,
                                           const GURL& new_location) {
   // Recording data use of request on redirects.
   // TODO(rajendrant): May not be needed when http://crbug/651957 is fixed.
   UpdateDataUsePrefs(request);
   ReportServicesMessageSizeUMA(request);
+  if (url_request_classifier_->IsFavIconRequest(request))
+    RecordFavIconDataUse(request);
 }
 
 void DataUseMeasurement::OnHeadersReceived(
     net::URLRequest* request,
     const net::HttpResponseHeaders* response_headers) {
   DataUseUserData* data_use_user_data = reinterpret_cast<DataUseUserData*>(
       request->GetUserData(DataUseUserData::kUserDataKey));
   if (data_use_user_data) {
     data_use_user_data->set_content_type(
         url_request_classifier_->GetContentType(*request, *response_headers));
@@ skipping 21 matching lines @@
 void DataUseMeasurement::OnCompleted(const net::URLRequest& request,
                                      bool started) {
   // TODO(amohammadkhan): Verify that there is no double recording in data use
   // of redirected requests.
   UpdateDataUsePrefs(request);
   ReportServicesMessageSizeUMA(request);
   RecordPageTransitionUMA(request);
 #if defined(OS_ANDROID)
   MaybeRecordNetworkBytesOS();
 #endif
+  if (url_request_classifier_->IsFavIconRequest(request))
+    RecordFavIconDataUse(request);
 }
 
 void DataUseMeasurement::ReportDataUseUMA(const net::URLRequest& request,
                                           TrafficDirection dir,
                                           int64_t bytes) {
   bool is_user_traffic = url_request_classifier_->IsUserRequest(request);
   bool is_connection_cellular =
       net::NetworkChangeNotifier::IsConnectionCellular(
           net::NetworkChangeNotifier::GetConnectionType());
 
@@ skipping 265 matching lines @@
     return;
 
   const DataUseRecorder* recorder = ascriber_->GetDataUseRecorder(request);
   if (recorder) {
     url_request_classifier_->RecordPageTransitionUMA(
         recorder->page_transition(), request.GetTotalReceivedBytes());
   }
 }
 
 }  // namespace data_use_measurement