Delay Estimator: robust_validation should be stored over a reset

BUG=None
TESTED=modules_unittests, trybots
R=aluebs@webrtc.org, andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/5959004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5337 4adac7df-926f-26a2-2b94-8c16560cd09d
2 files changed