802fe3b35c
This is a copy of the widevine CL: https://widevine-internal-review.googlesource.com/#/c/12742/ If a session is closed at the same time as an OnTimerEvent is processing an event, there could be a race condition between the two threads. This CL adds a lock that prevents a session from being removed from the list while the timer is currently processing an event. If CloseSession is called while the OnTimerEvent method is active, the session will be added to a dead list, and deleted when the timer event has finished. This CL does not address the main problem in bug 19252886, but one bugreport, netflix_log_3.txt, indicates there may have been a problem with the CDM timer. bug: 19252886 Change-Id: I17190edaeb3eef1295d4d204232cc4262cb5fa9b