It seems that the CI doesn't compile GTK/WPE webrtc branch using libwebrtc. Unreviewed build fix patch on the way.
Created attachment 455479 [details] Patch
ChangeLog entry in Source/WebCore/ChangeLog contains OOPS!.
Thanks for the fix, I thought I fixed these bugs before committing, sorry about that.
Created attachment 455481 [details] Patch
Committed r291743 (248775@main): <https://commits.webkit.org/248775@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 455481 [details].
<rdar://problem/90705292>