Since we need to support old versions of GStreamer, and that requires disabling ENABLE_MEDIA_SOURCE, we should expose it as a public option. It's pretty weird to tell users that they need to disable a secret hidden option in order to build WebKit.
Created attachment 353763 [details] Patch
Created attachment 353764 [details] Patch
Comment on attachment 353764 [details] Patch IMHO, what was weird was that this was private in the first place.
Comment on attachment 353764 [details] Patch Clearing flags on attachment: 353764 Committed r237791: <https://trac.webkit.org/changeset/237791>
All reviewed patches have been landed. Closing bug.