BUG=angleproject:945

Change-Id: I2eb44ac43f65b916ddd838d39e6aae62580d7fa0
Reviewed-on: https://chromium-review.googlesource.com/258903Tested-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Brandon Jones <bajones@chromium.org>