Enables DelayCorrection tests

The fix has been done elsewhere and the test pass.

BUG=3445
R=kwiberg@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/15679007

git-svn-id: http://webrtc.googlecode.com/svn/trunk@6371 4adac7df-926f-26a2-2b94-8c16560cd09d