GitLab

Change several LOG(WARNINGS) in chromeos::StatisticsProvider
to VLOG(1) to reduce log spam:

- "Requested statistic not found: ..."
- "Requested machine flag not found: ..."
- "CrOS region set to '...'"

Bug: 844258
Change-Id: I4a375f39ec919a62543366104d31367db715c54a
Reviewed-on: https://chromium-review.googlesource.com/1098473Reviewed-by: Thiemo Nagel <tnagel@chromium.org>
Reviewed-by: Igor <igorcov@chromium.org>
Commit-Queue: Dan Erat <derat@chromium.org>
Cr-Commit-Position: refs/heads/master@{#566819}