Add data usage tracking for chrome services

components/captive_portal/captive_portal_detector.cc

Index: components/captive_portal/captive_portal_detector.cc
diff --git a/components/captive_portal/captive_portal_detector.cc b/components/captive_portal/captive_portal_detector.cc
index 7188c340f9898688396d22eccc1b4754bbd03be1..04eb566438a1902948c124b9b5a4cdc7e9cb772b 100644
--- a/components/captive_portal/captive_portal_detector.cc
+++ b/components/captive_portal/captive_portal_detector.cc
@@ -6,6 +6,7 @@
 
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"
+#include "components/data_use_measurement/core/data_use_user_data.h"
 #include "net/base/load_flags.h"
 #include "net/http/http_response_headers.h"
 #include "net/http/http_util.h"
@@ -37,6 +38,9 @@ void CaptivePortalDetector::DetectCaptivePortal(
   url_fetcher_ = net::URLFetcher::Create(0, url, net::URLFetcher::GET, this);
   url_fetcher_->SetAutomaticallyRetryOn5xx(false);
   url_fetcher_->SetRequestContext(request_context_.get());
+  data_use_measurement::DataUseUserData::AttachToFetcher(
+      url_fetcher_.get(),
+      data_use_measurement::DataUseUserData::CAPTIVE_PORTAL);
 
   // Can't safely use net::LOAD_DISABLE_CERT_REVOCATION_CHECKING here,
   // since then the connection may be reused without checking the cert.