Bug 248502

Summary:	Manually invalidate the FontCache before clearing ThreadGlobalData.
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
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Matt Woodrow 2022-11-29 15:34:17 PST

Destructing the FontCache can recurse back into the ThreadGlobalData getter (to remove cached entries), so
we want to manually clear the FontCache before clearing the ThreadGlobalData pointer.

This also moves m_destroyed to earlier in the class, so it's guaranteed to be destructed after m_fontCache.

Comment 1 Matt Woodrow 2022-11-29 15:39:32 PST

Pull request: https://github.com/WebKit/WebKit/pull/6948

Comment 2 EWS 2022-11-29 20:57:39 PST

Committed 257160@main (2d8a9204f770): <https://commits.webkit.org/257160@main>

Reviewed commits have been landed. Closing PR #6948 and removing active labels.