Update RTCStats types and members in w3c_rtc.js to the latest spec.
Update RTCStats types and members in w3c_rtc.js to the latest spec.

PiperOrigin-RevId: 464881591

ChadKillingsworth/closure-compiler,google/closure-compiler,monetate/closure-compiler,ChadKillingsworth/closure-compiler,ChadKillingsworth/closure-compiler,monetate/closure-compiler,google/closure-compiler,google/closure-compiler,google/closure-compiler,monetate/closure-compiler,ChadKillingsworth/closure-compiler,monetate/closure-compiler