Bug: libyuv:751
Test: LibYUVConvertTest.ARGBToAR30_Opt
Change-Id: I09c13eb53ba5f1ce1740c013dc587f8300f1d9e0
Reviewed-on: https://chromium-review.googlesource.com/780437
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: richard winterton <rrwinterton@gmail.com>