BUG=angleproject:886

Change-Id: I74375351339464b450c2f058adbeed7a1ba18cdd
Reviewed-on: https://chromium-review.googlesource.com/262125Reviewed-by: Brandon Jones <bajones@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>