BUG=angleproject:1057

Change-Id: Ic52c385cb19f6ddccaf3d46a88a56670da0cf67d
Reviewed-on: https://chromium-review.googlesource.com/283987Tested-by: Cooper Partin <coopp@microsoft.com>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>