The idea sounds good to me. It is useful when the playback/playlist cannot proceed due to network problem or other failures. Currently the notification will be removed. Keeping the notification showing the broken state will help the user notice what's happening.

We could extent the "playbackState" attribute to achieve this.

zqzhang@, can you take it from untriage plate? feel free to re-assign appropriately. thanks

rachelis@, I'd love your feedback on this.

+dahlke FYI for now

Agreed, this seems broken. 

Do we have an existing state like this within the normal Chrome download notifications? 

If there is a network outage in downloads we just send it into a paused state until network connectivity is resumed. We don't provide any network-specific error.

Is this also something we want included on the redesign?

System notifications haven't been included within the scope of the media control redesign effort AFAIK. 

If you think it's something that should be, could you point me to some documentation on the original project? I wasn't involved so I feel like I may be missing some context =] 

I think we should probably leave this on the side until we do another iteration on the notification.