ref: acadcec5c51d1c6ded8765f80053a2dc6c796024
parent: 182f99f0c60eeb6c93a5ae40af835c0e16a83e52
author: Yaowu Xu <yaowu@google.com>
date: Tue Nov 6 10:17:20 EST 2012
group refmv experiment related functions Change-Id: Iedaa108ddb65f54d768424f9c47ad4d069b656fd