Record data use of user traffic by different core page transition types

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"
@@ skipping 125 matching lines @@
   bytes_transferred_since_last_traffic_stats_query_ += bytes_sent;
 #endif
 }
 
 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
 }
 
 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 =
@@ skipping 184 matching lines @@
         GetHistogramName("DataUse.MessageSize.AllServices", dir, app_state,
                          is_connection_cellular),
         service, message_size);
   }
 }
 
 void DataUseMeasurement::RecordTabStateHistogram(
     TrafficDirection dir,
     DataUseUserData::AppState app_state,
     bool is_tab_visible,
-    int64_t bytes) {
+    int64_t bytes) const {
   if (app_state == DataUseUserData::UNKNOWN)
     return;
 
   std::string histogram_name = "DataUse.AppTabState.";
   histogram_name.append(dir == UPSTREAM ? "Upstream." : "Downstream.");
   if (app_state == DataUseUserData::BACKGROUND) {
     histogram_name.append("AppBackground");
   } else if (is_tab_visible) {
     histogram_name.append("AppForeground.TabForeground");
   } else {
     histogram_name.append("AppForeground.TabBackground");
   }
   RecordUMAHistogramCount(histogram_name, bytes);
 }
 
+void DataUseMeasurement::RecordPageTransitionUMA(
+    const net::URLRequest& request) const {
+  if (!url_request_classifier_->IsUserRequest(request))
+    return;
+
+  const DataUseRecorder* recorder = ascriber_->GetDataUseRecorder(request);
+  if (recorder) {
+    LOG(WARNING) << "DATAUSE page transition " << recorder << " " << &request

[RyanSturm, 2017/01/06 21:56:38]

remove the log before landing.

[Raj, 2017/01/10 22:21:57]

Done.

+                 << " " << recorder->page_transition() << " "
+                 << request.GetTotalReceivedBytes();
+    url_request_classifier_->RecordPageTransitionUMA(
+        recorder->page_transition(), request.GetTotalReceivedBytes());
+  }
+}
+
 }  // namespace data_use_measurement