VPLIB: Fixing a bug in ConvertYUY2TOI420 + some code clean-up  Review URL: http://webrtc-codereview.appspot.com/46001
VPLIB: Fixing a bug in ConvertYUY2TOI420 + some code clean-up 
Review URL: http://webrtc-codereview.appspot.com/46001

stoiczek/WebRTC,stoiczek/WebRTC,stoiczek/WebRTC,stoiczek/WebRTC