Add navigation_url_loader as an user traffic NTA

Bug: 952435
Change-Id: I9568cc51d467feba3f20b82b60cd465d5bf3d09d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1574655Reviewed-by: Tarun Bansal <tbansal@chromium.org>
Commit-Queue: rajendrant <rajendrant@chromium.org>
Cr-Commit-Position: refs/heads/master@{#652732}

components/data_use_measurement/core/data_use_measurement.cc

@@ -484,6 +484,7 @@ bool DataUseMeasurement::IsUserRequest(
           "downloads_api_run_async"), /* Can be user request or
                                          autonomous request from extensions*/
       COMPUTE_NETWORK_TRAFFIC_ANNOTATION_ID_HASH("resource_dispatcher_host"),
+      COMPUTE_NETWORK_TRAFFIC_ANNOTATION_ID_HASH("navigation_url_loader"),
   };
   return kUserInitiatedTrafficAnnotations.find(
              network_traffic_annotation_hash_id) !=