DOMProgressEvent does not appear in PublicDOMInterfaces.h, but it's installed as a public header. This results in it being annotated as NS_CLASS_AVAILABLE_MAC(TBD).
Created attachment 220492 [details] Patch
Please wait for approval from timothy@apple.com (or another member of the Apple Safari Team) before submitting because this patch contains changes to the Apple Mac WebKit.framework public API.
Comment on attachment 220492 [details] Patch Clearing flags on attachment: 220492 Committed r161415: <http://trac.webkit.org/changeset/161415>
All reviewed patches have been landed. Closing bug.