ref: 277338f7488d40d27a9ea8d3a5b2bf1a0f32aa95
parent: 5e7242dfda069046dced13cac8170bfe0fdb5f05
author: Minghai Shang <minghai@google.com>
date: Tue Jun 24 10:01:17 EDT 2014
[spatial svc]Implement lag in frames for spatial svc Change-Id: I930dced169c9d53f8044d2754a04332138347409