[GStreamer] Do not adopt floating references.
Created attachment 378553 [details] Patch
Comment on attachment 378553 [details] Patch Clearing flags on attachment: 378553 Committed r249761: <https://trac.webkit.org/changeset/249761>
All reviewed patches have been landed. Closing bug.
<rdar://problem/55257011>
<rdar://problem/55257012>