BUG=angleproject:795

Change-Id: I76b44e837eb6919f9d3c1eb56c2d3af84bc5ab09
Reviewed-on: https://chromium-review.googlesource.com/260943Reviewed-by: Brandon Jones <bajones@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>