BUG=angleproject:892

Change-Id: If09cf30122d97590f07447147e6d54c2e4157f9e
Reviewed-on: https://chromium-review.googlesource.com/269828Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Corentin Wallez <cwallez@chromium.org>