ref: 8d80c262d11db39212fd96c325c8ca281be79340
parent: 4632a96d9771b49d6edfe78b68e5dfbafa75fff3
author: Dmitry Kovalev <dkovalev@google.com>
date: Tue Feb 25 13:01:49 EST 2014
Using clamp() for active_{best, worst}_quality.
Change-Id: Ia79f975f54829b8ae6b568ca5c05f4f1f541706f