ref: 5c5582242db56aad21ad70ce4f13dc37255f87f3
parent: cd16fe91606a698721dcc5802b29f6f859a629ff
author: Dmitry Kovalev <dkovalev@google.com>
date: Tue May 14 13:10:17 EDT 2013
Moving the same code to new function vp9_setup_scale_factors. Change-Id: I2408ad22717784a40e23701ccb9d978265440e4f