BUG=333
TESTED=validator passes
R=jfb@chromium.org, tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/13649004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1012 16f28f9a-4ce2-e073-06de-1de4eb20be90