Allow RTCRtpScriptTransformer to request key frames
Created attachment 414668 [details] Patch
Created attachment 414672 [details] Patch
Created attachment 414705 [details] Patch
Created attachment 414718 [details] Patch
Created attachment 414726 [details] Patch
<rdar://problem/71763010>
Comment on attachment 414726 [details] Patch r=me once the bots are happy
Created attachment 415114 [details] Patch
Committed r270294: <https://trac.webkit.org/changeset/270294> All reviewed patches have been landed. Closing bug and clearing flags on attachment 415114 [details].