These are both fairly common, and rarely actionable.

Bug: chromium:765576
Change-Id: Ib067fcbb1d4ffe7fcd47b69dbe5defac81430a70
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2188952Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>