Use MediaKeySystemRequestIdentifier, rather than mysterious uint64_t values, in WebKit
Created attachment 435916 [details] Patch
Comment on attachment 435916 [details] Patch r=me once EWS bots are happy
Created attachment 436058 [details] Patch
Created attachment 436059 [details] Patch
Committed r281376 (240791@main): <https://commits.webkit.org/240791@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 436059 [details].
<rdar://problem/82205603>