ref: f9d69bd0fd08c2c2cd02db9cbc0948093a76160f
parent: a19d694f0943753339eb39f11954d6c840300905
author: Frank Galligan <fgalligan@google.com>
date: Mon Dec 9 12:07:10 EST 2013
Add pre decode frame hook to decoder test class. Adds a hook that derived test classes can implement to be notified before every call to decode a frame. Change-Id: Iefa836459cf3e5d7df9ee27f8198daf82b1be088