Fixes a bug in the simulation framework where the time offset is accumulating as the packet trace is repeated, causing increasingly large gaps with no packets being transmitted.

R=solenberg@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/9469004

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@5650 4adac7df-926f-26a2-2b94-8c16560cd09d
3 files changed