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

google_apis/gcm/engine/registration_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/registration_request.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/values.h"
+#include "components/data_use_measurement/core/data_use_user_data.h"
 #include "google_apis/gcm/base/gcm_util.h"
 #include "google_apis/gcm/monitoring/gcm_stats_recorder.h"
 #include "net/base/load_flags.h"
 #include "net/http/http_request_headers.h"
 #include "net/http/http_status_code.h"
 #include "net/url_request/url_fetcher.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "net/url_request/url_request_status.h"
 #include "url/gurl.h"
 
@@ skipping 115 matching lines @@
 
 void RegistrationRequest::Start() {
   DCHECK(!callback_.is_null());
   DCHECK(!url_fetcher_.get());
 
   url_fetcher_ =
       net::URLFetcher::Create(registration_url_, net::URLFetcher::POST, this);
   url_fetcher_->SetRequestContext(request_context_getter_.get());
   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);
 
   std::string extra_headers;
   BuildRequestHeaders(&extra_headers);
   url_fetcher_->SetExtraRequestHeaders(extra_headers);
 
   std::string body;
   BuildRequestBody(&body);
 
   DVLOG(1) << "Performing registration for: " << request_info_.app_id();
   DVLOG(1) << "Registration request: " << body;
@@ skipping 110 matching lines @@
     // Only REACHED_MAX_RETRIES is reported because the function will skip
     // reporting count and time when status is not SUCCESS.
     DCHECK(custom_request_handler_.get());
     custom_request_handler_->ReportUMAs(status, 0, base::TimeDelta());
   }
 
   callback_.Run(status, token);
 }
 
 }  // namespace gcm