Add data usage tracking for GAIA auth api

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/url_request/url_request.h"
 
 #if defined(OS_ANDROID)
 #include "net/android/traffic_stats.h"
 #endif
 
 namespace data_use_measurement {
@@ skipping 71 matching lines @@
   if (!data_use_user_data) {
     DataUseUserData::ServiceName service_name =
         DataUseUserData::ServiceName::NOT_TAGGED;
     if (!url_request_classifier_->IsUserRequest(*request) &&
         domain_reliability::DomainReliabilityUploader::
             OriginatedFromDomainReliability(*request)) {
       // Detect if the request originated from DomainReliability.
       // DataUseUserData::AttachToFetcher() cannot be called from domain
       // reliability, since it sets userdata on URLFetcher for its purposes.
       service_name = DataUseUserData::ServiceName::DOMAIN_RELIABILITY;
+    } else if (gaia::RequestOriginatedFromGaia(*request)) {
+      service_name = DataUseUserData::ServiceName::GAIA;
     }
 
     data_use_user_data = new DataUseUserData(service_name, CurrentAppState());
     request->SetUserData(DataUseUserData::kUserDataKey, data_use_user_data);
   } else {
     data_use_user_data->set_app_state(CurrentAppState());
   }
 }
 
 void DataUseMeasurement::OnBeforeRedirect(const net::URLRequest& request,
@@ skipping 298 matching lines @@
     STATIC_HISTOGRAM_POINTER_BLOCK(
         "DataUse.ContentType.Services", AddCount(content_type, bytes),
         base::LinearHistogram::FactoryGet(
             "DataUse.ContentType.Services", 1, DataUseUserData::TYPE_MAX,
             DataUseUserData::TYPE_MAX + 1,
             base::HistogramBase::kUmaTargetedHistogramFlag));
   }
 }
 
 }  // namespace data_use_measurement