BUG=angleproject:1634

Change-Id: I3822b99b59d4653e4d9a2c1d3dd16734f2050fae
Reviewed-on: https://chromium-review.googlesource.com/414437
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>