ivoc 20834ca806 Adds a nullptr check to prevent a rare crash when starting or stopping an RtcEventLog.
BUG=webrtc:4741,chromium:581788

Review URL: https://codereview.webrtc.org/1666843003

Cr-Commit-Position: refs/heads/master@{#11490}
2016-02-04 14:33:41 +00:00
..
2015-10-27 11:08:19 +00:00