Add data usage tracking for chrome services

components/gcm_driver/gcm_channel_status_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 "components/gcm_driver/gcm_channel_status_request.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
 #include "base/threading/thread_task_runner_handle.h"
+#include "components/data_use_measurement/core/data_use_user_data.h"
 #include "components/gcm_driver/gcm_backoff_policy.h"
 #include "components/sync/protocol/experiment_status.pb.h"
 #include "net/base/escape.h"
 #include "net/base/load_flags.h"
 #include "net/http/http_status_code.h"
 #include "net/url_request/url_fetcher.h"
 #include "net/url_request/url_request_status.h"
 #include "url/gurl.h"
 
 namespace gcm {
@@ skipping 40 matching lines @@
 
   sync_pb::ExperimentStatusRequest proto_data;
   proto_data.add_experiment_name(kGCMChannelTag);
   std::string upload_data;
   if (!proto_data.SerializeToString(&upload_data)) {
      NOTREACHED();
   }
 
   url_fetcher_ =
       net::URLFetcher::Create(request_url, net::URLFetcher::POST, this);
+  data_use_measurement::DataUseUserData::AttachToFetcher(
+      url_fetcher_.get(), data_use_measurement::DataUseUserData::GCM_DRIVER);
   url_fetcher_->SetRequestContext(request_context_getter_.get());
   url_fetcher_->AddExtraRequestHeader("User-Agent: " + user_agent_);
   url_fetcher_->SetUploadData(kRequestContentType, upload_data);
   url_fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES |
                              net::LOAD_DO_NOT_SAVE_COOKIES);
   url_fetcher_->Start();
 }
 
 void GCMChannelStatusRequest::OnURLFetchComplete(
     const net::URLFetcher* source) {
@@ skipping 67 matching lines @@
         FROM_HERE, base::Bind(&GCMChannelStatusRequest::RetryWithBackoff,
                               weak_ptr_factory_.GetWeakPtr(), false),
         backoff_entry_.GetTimeUntilRelease());
     return;
   }
 
   Start();
 }
 
 }  // namespace gcm