The time was reported in milliseconds, but should be reported in seconds
instead.

TBR=ulan@chromium.org, szuend@chromium.org

Change-Id: I171cdb0107cd522b0d62ac6ed4edfacf7599da0b
Bug: chromium:1022031
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1997137Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#65727}