R=jarin@chromium.org

Bug: v8:6048
Change-Id: Ia80a403f647b176ef02807f6d15b3198b55234bc
Reviewed-on: https://chromium-review.googlesource.com/506013
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45329}