Bug: libyuv:760
Test: LibYUVConvertTest.H420ToRAW_Opt
Change-Id: I050385f477309d5db02bb2218088f224c83392ed
Reviewed-on: https://chromium-review.googlesource.com/775785
Commit-Queue: Frank Barchard <fbarchard@google.com>
Reviewed-by: Weiyong Yao <braveyao@chromium.org>