Add getVideoPlaybackQuality API

[gesinger]

No description provided.

[mjneil]

Does flash have a notion of corruptedVideoFrames?

Also what about the creationTime property? Is the plan to have the VideoPlaybackQuality plugin handle that property?

[gesinger]

I couldn't find anything for corrupted frames. As for the creationTime property, since W3C specifications wanted a DOMHighResTimeStamp, I felt it might be safer to forego it for now.

[gesinger]

After more discussion, creationTime will be added, but will be added from the JS level, since it needs to be relative to the time origin (https://w3c.github.io/hr-time/#time-origin).

[mjneil]

LGTM

[gkatsev]

Want to add a line to the unreleased section of the changelog?

[zhuangs]

Tested and LGTM!

[imbcmdth]

Check on Firefox!

[gesinger]

Works on Firefox 👍