BUG=960620, libyuv:845, b/129864744

Change-Id: I43b152568b7f297f81624d47e56a334c127be17b
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/1901465Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>