BUG=none
TEST=libyuv_unittest.exe  --gtest_catch_exceptions=0 --gtest_filter=*Cpu*
Review URL: https://webrtc-codereview.appspot.com/566007

git-svn-id: http://libyuv.googlecode.com/svn/trunk@259 16f28f9a-4ce2-e073-06de-1de4eb20be90