ref: 7fc5e742320f6601f21098a45121b25a7ac52830
parent: 619e6b539a6eb2beed1dccc43b504e357f120da3
author: Yaowu Xu <yaowu@google.com>
date: Thu May 15 14:40:13 EDT 2014
Reuse precalculated result Change-Id: Iff9efff6c9cb41f833cee40eae014bd4489a87d0