Bug 257399

Summary:	REGRESSION (262176@main): Don't recreate the ScrollbarsController every time we add a scrollbar
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 15:50:58 PDT

After 262176@main we create a new ScrollbarsController on every call to LocalFrameView::didAddScrollbar()

Comment 1 Radar WebKit Bug Importer 2023-05-26 15:51:44 PDT

<rdar://problem/109909019>

Comment 2 Simon Fraser (smfr) 2023-05-26 16:01:47 PDT

Pull request: https://github.com/WebKit/WebKit/pull/14408

Comment 3 EWS 2023-05-30 12:12:33 PDT

Committed 264690@main (003e0fd9799f): <https://commits.webkit.org/264690@main>

Reviewed commits have been landed. Closing PR #14408 and removing active labels.