Test YUV against reference BUG=393 TESTED=TestGreyYUV R=harryjin@google.com
Test YUV against reference
BUG=393
TESTED=TestGreyYUV
R=harryjin@google.com

Review URL: https://webrtc-codereview.appspot.com/33229004

git-svn-id: a51711482b6ba0e1d1ab095578a045eeae45ac9a@1265 16f28f9a-4ce2-e073-06de-1de4eb20be90

disigma/yuv,yarrcc/libyuv-ios,lemenkov/libyuv,lemenkov/libyuv,yarrcc/libyuv-ios,jpxiong/libyuv,lyx2014/yuv,PeterXu/libyuv,lyx2014/yuv,xlncz/libyuv,lyx2014/yuv,lyx2014/libyuv_free,lemenkov/libyuv,lyx2014/libyuv_free,disigma/yuv,okumura/libyuv,Bilibili/libyuv,godghdai/libyuv,xlncz/libyuv,lyx2014/yuv,godghdai/libyuv,disigma/yuv,labdong801/libyuv,yarrcc/libyuv-ios,Bilibili/libyuv,lyx2014/libyuv_free,okumura/libyuv,labdong801/libyuv,labdong801/libyuv,okumura/libyuv,PeterXu/libyuv,jpxiong/libyuv,xlncz/libyuv,jpxiong/libyuv,Bilibili/libyuv,godghdai/libyuv,xlncz/libyuv,yarrcc/libyuv-ios,lemenkov/libyuv,lyx2014/libyuv_free,PeterXu/libyuv