In 263115@main a few Cocoa-specific headers were added to the list in Source/WebCore/Headers.cmake, but those should be appended from Source/WebCore/PlatformMac.cmake instead.
Pull request: https://github.com/WebKit/WebKit/pull/12990
Committed 263210@main (14502b3258b8): <https://commits.webkit.org/263210@main> Reviewed commits have been landed. Closing PR #12990 and removing active labels.
<rdar://problem/108354394>