tree 194ecc47961f7f7f10accc0b759ca1449dfdf868
parent c6c243bf01fe74c8f2fe266c3540822324bee0ea
author John Spurlock <jspurlock@google.com> 1389813239 -0500
committer John Spurlock <jspurlock@google.com> 1389813523 -0500

Tear down bars on destroy() and avoid null pointers.

Change-Id: Ie393689bbf2f0b28895bfde5098c883b5d4ea4a6