Add data usage tracking for safe browsing

components/safe_browsing_db/v4_update_protocol_manager.cc

 // Copyright 2016 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/safe_browsing_db/v4_update_protocol_manager.h"
 
 #include <utility>
 
 #include "base/base64url.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/rand_util.h"
 #include "base/timer/timer.h"
+#include "components/data_use_measurement/core/data_use_user_data.h"
 #include "components/safe_browsing_db/safebrowsing.pb.h"
 #include "net/base/load_flags.h"
 #include "net/http/http_response_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"
 
 using base::Time;
 using base::TimeDelta;
 
@@ skipping 254 matching lines @@
   }
 
   std::string req_base64 = GetBase64SerializedUpdateRequestProto();
   GURL update_url;
   net::HttpRequestHeaders headers;
   GetUpdateUrlAndHeaders(req_base64, &update_url, &headers);
 
   std::unique_ptr<net::URLFetcher> fetcher = net::URLFetcher::Create(
       url_fetcher_id_++, update_url, net::URLFetcher::GET, this);
   fetcher->SetExtraRequestHeaders(headers.ToString());
+  data_use_measurement::DataUseUserData::AttachToFetcher(
+      fetcher.get(), data_use_measurement::DataUseUserData::SAFE_BROWSING);
 
   request_.reset(fetcher.release());
 
   request_->SetLoadFlags(net::LOAD_DISABLE_CACHE);
   request_->SetRequestContext(request_context_getter_.get());
   request_->Start();
   // TODO(vakh): Handle request timeout.
 }
 
 // net::URLFetcherDelegate implementation ----------------------------------
@@ skipping 50 matching lines @@
 
 void V4UpdateProtocolManager::GetUpdateUrlAndHeaders(
     const std::string& req_base64,
     GURL* gurl,
     net::HttpRequestHeaders* headers) const {
   V4ProtocolManagerUtil::GetRequestUrlAndHeaders(
       req_base64, "threatListUpdates:fetch", config_, gurl, headers);
 }
 
 }  // namespace safe_browsing