asapersson 38bb8ad1ca Add test for verifying configured key frame interval for VP9.
BUG=

Review URL: https://codereview.webrtc.org/1498053002

Cr-Commit-Position: refs/heads/master@{#11004}
2015-12-14 09:41:27 +00:00
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2015-12-10 17:27:45 +00:00