Bug 264531

Summary:	hideContentUntilPendingUpdate callbacks can be processed too late after the transaction and cause flickering
Product:	WebKit	Reporter:	Matt Woodrow <mattwoodrow>
Component:	Layout and Rendering	Assignee:	Matt Woodrow <mattwoodrow>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	bfulgham, simon.fraser, webkit-bug-importer, zalan
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Matt Woodrow 2023-11-09 15:42:53 PST

<rdar://118083889>

The callbacks for DispatchAfterEnsuringDrawing get processed at the end of the transaction, after we've already told the client that we've committed the transaction.

In some cases, this can cause them to be included as a separate CA commit, and cause flickering.

Comment 1 Matt Woodrow 2023-11-09 15:46:44 PST

Pull request: https://github.com/WebKit/WebKit/pull/20268

Comment 2 EWS 2023-11-13 14:34:59 PST

Committed 270672@main (923ed5177ec0): <https://commits.webkit.org/270672@main>

Reviewed commits have been landed. Closing PR #20268 and removing active labels.