BUG=none
TEST=psnr faces_1280x720_P420.yuv faces_c_1280x720_P420.yuv
Review URL: https://webrtc-codereview.appspot.com/1304007

git-svn-id: http://libyuv.googlecode.com/svn/trunk@652 16f28f9a-4ce2-e073-06de-1de4eb20be90