Bug 257398

Summary:	[UI-side compositing] Mock scrollbars fail to update in many layout tests
Product:	WebKit	Reporter:	Simon Fraser (smfr) <simon.fraser>
Component:	Scrolling	Assignee:	Simon Fraser (smfr) <simon.fraser>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	nmouchtaris, simon.fraser, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Local Build
Hardware:	Unspecified
OS:	Unspecified

Description Simon Fraser (smfr) 2023-05-26 15:40:33 PDT

scrollingcoordinator/mac/multiple-fixed.html fails with UI-side compositing. The scrollbar fails to update.

Comment 1 Radar WebKit Bug Importer 2023-05-26 15:40:54 PDT

<rdar://problem/109908570>

Comment 2 Simon Fraser (smfr) 2023-05-26 15:44:55 PDT

Pull request: https://github.com/WebKit/WebKit/pull/14407

Comment 3 EWS 2023-05-26 20:06:17 PDT

Committed 264615@main (7c78af270fc7): <https://commits.webkit.org/264615@main>

Reviewed commits have been landed. Closing PR #14407 and removing active labels.