BUG=angleproject:891

Change-Id: I458a12bd6b4be3b262d76184c51bde1f2b803c67
Reviewed-on: https://chromium-review.googlesource.com/299730Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tryjob-Request: Corentin Wallez <cwallez@chromium.org>
Tested-by: Corentin Wallez <cwallez@chromium.org>