The LOG_END time is incorrect if the event log is stopped by the file size limit instead of a duration limit or a manual stop. This makes the call appear to be very long (10^13 seconds) in the analysis tool. This CL is a workaround for that problem. BUG=webrtc:6138 Review-Url: https://codereview.webrtc.org/2176663002 Cr-Commit-Position: refs/heads/master@{#13585}