BUG=319
TESTED=libyuv_unittest
R=fbarchard@chromium.org, fbarchard@google.com

Review URL: https://webrtc-codereview.appspot.com/20259004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@1081 16f28f9a-4ce2-e073-06de-1de4eb20be90