ref: 12180c8329d56d72e8d4424b8fd82b1b2f8e846a
parent: 2319b7aaf17b7efe143862bf0569fe8c9efd9d1f
author: Yaowu Xu <yaowu@google.com>
date: Tue Jun 18 14:18:25 EDT 2013
Remove unnecessary copying of probs. Change-Id: Ic924f07c6ab0c929c6cdf11880d3c625806e272c