Add record timestamp.

Timestamp was accidentally removed during a refactor in
crrev.com/c/5519814.

Change-Id: I1fecb88a34079189afaec213c2272caded81aa8d
Bug: b:340225295
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5535419
Commit-Queue: Josh Hilke <[email protected]>
Reviewed-by: Leonid Baraz <[email protected]>
Reviewed-by: Alberto Juarez <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1300145}
diff --git a/components/reporting/client/report_queue_impl.cc b/components/reporting/client/report_queue_impl.cc
index 61ab9948..bf7d90a 100644
--- a/components/reporting/client/report_queue_impl.cc
+++ b/components/reporting/client/report_queue_impl.cc
@@ -132,6 +132,7 @@
             {"Abnormal system timestamp obtained. Microseconds since epoch: ",
              base::NumberToString(time_since_epoch_us)})));
   }
+  record.set_timestamp_us(time_since_epoch_us);
   return std::move(record);
 }