BUG=angleproject:1523

Change-Id: I4e6e4ec6ae7cfb616869373b62dc455d0c5c8c09
Reviewed-on: https://chromium-review.googlesource.com/744444
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>