ref: cbc7ec55a5c98b3f3eff4441cc280cfe1c5aaf6c
parent: c5840a8d8e25a733c108fd2ba7527d6282daae20
parent: 43df87e8417ae83ebc73d1535e381c900fd471fa
author: Yaowu Xu <yaowu@google.com>
date: Fri Mar 29 04:40:29 EDT 2013
Merge "remove code not in use" into experimental