BUG=angleproject:886

Change-Id: I7480943d678b2cdf6e997c3f8316acdef32f5f0d
Reviewed-on: https://chromium-review.googlesource.com/260889Reviewed-by: Kenneth Russell <kbr@chromium.org>
Reviewed-by: Brandon Jones <bajones@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>