ref: cc8a11d8a11d9d248271ed29dd0c92674b42d04b
parent: aeeaa679876be7709e55152c979c562787253c49
parent: 01613aa753b6ce906a84d0628f210c0848362e25
author: Jingning Han <jingning@google.com>
date: Wed Dec 17 04:24:39 EST 2014
Merge "Set second ref frame to be NONE in key frame coding"