BUG=angleproject:1468

Change-Id: I3c42872ba13dbf346722bc34b9415a4e79c9f82c
Reviewed-on: https://chromium-review.googlesource.com/413328
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>