BUG=angleproject:892

Change-Id: I2dda3a8d15e58d15a401258a5a64c5783ea1a132
Reviewed-on: https://chromium-review.googlesource.com/269666Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Corentin Wallez <cwallez@chromium.org>