ref: ff2c96be1fe11f76b72e6f15fd23155627c9bbe4
parent: 2dd730ccb39424f2589f9593e5ea96f27801c64f
author: hkuang <hkuang@google.com>
date: Fri Dec 6 06:39:38 EST 2013
Implenment on demand border extension. In place extend the border now. Next commit will totally remove the border. Change-Id: Ic1e1ca9cc34f81c688715b3948689b47df63a151