Every macOS/iOS MediaPlayerPrivate contains identical code for handling fullscreen. Make VideoFullscreenLayerManager an abstract class, add an ObjC version, and put the shared code there.
Created attachment 336230 [details]
Comment on attachment 336230 [details]
Clearing flags on attachment: 336230
Committed r229824: <https://trac.webkit.org/changeset/229824>
All reviewed patches have been landed. Closing bug.