Remove PlatformMediaSessionClient dependency on Document
Created attachment 391051 [details] Patch
Created attachment 391058 [details] Patch
Comment on attachment 391058 [details] Patch Clearing flags on attachment: 391058 Committed r256844: <https://trac.webkit.org/changeset/256844>
All reviewed patches have been landed. Closing bug.
<rdar://problem/59559102>