BUG=angleproject:891

Change-Id: Idf2a89ad26955df3579bb2c1883137589f68f573
Reviewed-on: https://chromium-review.googlesource.com/299720
Tryjob-Request: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tryjob-Request: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Corentin Wallez <cwallez@chromium.org>