V8-side for:
https://chromium-review.googlesource.com/c/519143/

NOTRY=true

Bug: chromium:726584
Change-Id: Id6f186a47cfdf9287a399ce3fe58c9edb6474ed9
Reviewed-on: https://chromium-review.googlesource.com/519166Reviewed-by: Daniel Vogelheim <vogelheim@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45636}