Add data usage tracking for chrome services

components/network_time/network_time_tracker.cc

 // Copyright 2014 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/network_time/network_time_tracker.h"
 
 #include <stdint.h>
 #include <string>
 #include <utility>
 
 #include "base/i18n/time_formatting.h"
 #include "base/json/json_reader.h"
 #include "base/logging.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/metrics/sparse_histogram.h"
 #include "base/rand_util.h"
 #include "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/tick_clock.h"
 #include "build/build_config.h"
 #include "components/client_update_protocol/ecdsa.h"
+#include "components/data_use_measurement/core/data_use_user_data.h"
 #include "components/network_time/network_time_pref_names.h"
 #include "components/prefs/pref_registry_simple.h"
 #include "components/prefs/pref_service.h"
 #include "components/variations/variations_associated_data.h"
 #include "net/base/load_flags.h"
 #include "net/base/net_errors.h"
 #include "net/http/http_response_headers.h"
 #include "net/url_request/url_fetcher.h"
 #include "net/url_request/url_fetcher_response_writer.h"
 #include "net/url_request/url_request_context_getter.h"
@@ skipping 424 matching lines @@
   GURL::Replacements replacements;
   replacements.SetQueryStr(query_string);
   url = url.ReplaceComponents(replacements);
 
   // This cancels any outstanding fetch.
   time_fetcher_ = net::URLFetcher::Create(url, net::URLFetcher::GET, this);
   if (!time_fetcher_) {
     DVLOG(1) << "tried to make fetch happen; failed";
     return;
   }
+  data_use_measurement::DataUseUserData::AttachToFetcher(
+      time_fetcher_.get(),
+      data_use_measurement::DataUseUserData::NETWORK_TIME_TRACKER);
   time_fetcher_->SaveResponseWithWriter(
       std::unique_ptr<net::URLFetcherResponseWriter>(
           new SizeLimitingStringWriter(max_response_size_)));
   DCHECK(getter_);
   time_fetcher_->SetRequestContext(getter_.get());
   // Not expecting any cookies, but just in case.
   time_fetcher_->SetLoadFlags(net::LOAD_BYPASS_CACHE | net::LOAD_DISABLE_CACHE |
                               net::LOAD_DO_NOT_SAVE_COOKIES |
                               net::LOAD_DO_NOT_SEND_COOKIES |
                               net::LOAD_DO_NOT_SEND_AUTH_DATA);
@@ skipping 123 matching lines @@
   base::Time network_time;
   if (GetNetworkTime(&network_time, nullptr) != NETWORK_TIME_AVAILABLE) {
     return true;
   }
 
   // Otherwise, make the decision at random.
   return base::RandDouble() < RandomQueryProbability();
 }
 
 }  // namespace network_time