Re: [webrtc-stats] Add deceleratedSamples and acceleratedSamples (#408)

Please take another look @vr000m, see Ivo's comment.

Repeating some key points of the above:
- This is not implementation-specific: "The one thing that any method of increasing or reducing the speed of audio has in common is that samples must be added/removed, which is what the stats are supposed to reflect."
- Packet loss concealment happen when we have no samples for playout, whereas deceleratedSamples are samples added to prevent us from reaching such a state. There is an audible difference, and they are not the same thing.
- It is useful to know all of these different metrics, which is one of the reasons people still use legacy goog-stats.

-- 
GitHub Notification of comment by henbos
Please view or discuss this issue at https://github.com/w3c/webrtc-stats/pull/408#issuecomment-474318835 using your GitHub account