Add data usage tracking for GAIA auth api and GCM engine service

google_apis/gcm/engine/checkin_request.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 "google_apis/gcm/engine/checkin_request.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/threading/thread_task_runner_handle.h"
+#include "components/data_use_measurement/core/data_use_user_data.h"
 #include "google_apis/gcm/monitoring/gcm_stats_recorder.h"
 #include "google_apis/gcm/protocol/checkin.pb.h"
 #include "net/base/load_flags.h"
 #include "net/url_request/url_fetcher.h"
 #include "net/url_request/url_request_status.h"
 
 namespace gcm {
 
 namespace {
 const char kRequestContentType[] = "application/x-protobuf";
@@ skipping 123 matching lines @@
 
   std::string upload_data;
   CHECK(request.SerializeToString(&upload_data));
 
   url_fetcher_ =
       net::URLFetcher::Create(checkin_url_, net::URLFetcher::POST, this);
   url_fetcher_->SetRequestContext(request_context_getter_);
   url_fetcher_->SetUploadData(kRequestContentType, upload_data);
   url_fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES |
                              net::LOAD_DO_NOT_SAVE_COOKIES);
+  data_use_measurement::DataUseUserData::AttachToFetcher(
+      url_fetcher_.get(), data_use_measurement::DataUseUserData::GCM_ENGINE);
   recorder_->RecordCheckinInitiated(request_info_.android_id);
   request_start_time_ = base::TimeTicks::Now();
   url_fetcher_->Start();
 }
 
 void CheckinRequest::RetryWithBackoff() {
   backoff_entry_.InformOfRequest(false);
   url_fetcher_.reset();
 
   DVLOG(1) << "Delay GCM checkin for: "
@@ skipping 57 matching lines @@
 
   RecordCheckinStatusAndReportUMA(SUCCESS, recorder_, false);
   UMA_HISTOGRAM_COUNTS("GCM.CheckinRetryCount",
                        backoff_entry_.failure_count());
   UMA_HISTOGRAM_TIMES("GCM.CheckinCompleteTime",
                       base::TimeTicks::Now() - request_start_time_);
   callback_.Run(response_status, response_proto);
 }
 
 }  // namespace gcm