ref: b2c34d55397c43812374e8fdf740c93406f6cb14
parent: 29beeff11dd957af3f28d52fea9433ec43603bc7
author: Dmitry Kovalev <dkovalev@google.com>
date: Mon Mar 10 14:33:08 EDT 2014
Using enums instead of integers. Change-Id: Ic0d74ab3a4c0c854fbcf59d9df5212c218bc68f9