screencast: Don't try to screencast nullptr
For some reason we were received an output that was null. Account for it by notifying and outputing some more information in hopes of fixing it soon. CCBUG: 467622
For some reason we were received an output that was null. Account for it by notifying and outputing some more information in hopes of fixing it soon. CCBUG: 467622
mentioned in commit f4305123
·mentioned in commit f4305123