ref: 4d1c117f5bc0200b7484b95ad07c856c6b9003cd
parent: 1139f0dbc22d228bc1e295dc76819da6333daa99
author: Johann <johannkoenig@google.com>
date: Wed Aug 31 18:17:38 EDT 2016
Enable -Wundef by default BUG=webm:1069 Change-Id: I43728f9fd007542718a55d5fdcbc63a8d2f86682