Shim to insulate apps from spec changes and prefix differences. Latest adapter.js release:
Details: https://github.com/webrtc/adapter/compare/v6.3.0...v6.3.1
Also, various fixes.
Details: https://github.com/webrtc/adapter/compare/v6.2.1...v6.3.0
Fixes for:
Full list: https://github.com/webrtc/adapter/compare/v6.1.5...v6.2.0