ref: 19d42de3cac1fe488799a650dd3ea80a7898216a
parent: 0497b8d7cd3442f93972dfea821431a10a06da6f
parent: dbea726dafcaa26af48583cec8bb73d0f014b616
author: Deb Mukherjee <debargha@google.com>
date: Thu Aug 1 10:18:43 EDT 2013
Merge "Adds a source variance computation function"