[webrtc-stats] Consider making (aggregate) stats more accessible

stefhak has just created a new issue for 
https://github.com/w3c/webrtc-stats:

== Consider making (aggregate) stats more accessible ==
Feedback from web performance group review [1]:

"Stats are associated with each stream, which means that application 
developers have to manually instrument each stream. Is there a use 
case for analytics / third-party instrumentation to gather similar 
stats? E.g. it would be nice if existing RUM providers could 
auto-gather stats without monkey-patching all the WebRTC APIs to 
figure out when new streams are initiated, etc. 

Performance Timeline provides PerformanceObserver [2] interface which 
allows anyone to register and listen for events. It might be worth 
considering, if it makes sense, emitting some WebRTC related events 
via this mechanism... which could stream specific or aggregated. "

[1] 
https://lists.w3.org/Archives/Public/public-web-perf/2016Dec/0013.html

Please view or discuss this issue at 
https://github.com/w3c/webrtc-stats/issues/119 using your GitHub 
account