BUG=angleproject:892

Change-Id: I1ad366e16b135649fe1b0351081f9971db84df50
Reviewed-on: https://chromium-review.googlesource.com/269665Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Corentin Wallez <cwallez@chromium.org>