Bug 195729

Summary:	Optimize AsyncScrollingCoordinator::applyScrollingTreeLayerPositions() to do no work if no scrolling happened
Product:	WebKit	Reporter:	Simon Fraser (smfr) <simon.fraser>
Component:	Scrolling	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED DUPLICATE
Severity:	Normal	CC:	fred.wang, koivisto, simon.fraser, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Simon Fraser (smfr) 2019-03-13 19:28:38 PDT

AsyncScrollingCoordinator::applyScrollingTreeLayerPositions should do nothing if there was no scrolling tree change since the last apply, just to avoid extra work.

Comment 1 Radar WebKit Bug Importer 2019-03-13 19:29:05 PDT

<rdar://problem/48874171>

Comment 2 Antti Koivisto 2019-06-06 09:50:21 PDT

This was fixed in <https://trac.webkit.org/changeset/246156>

*** This bug has been marked as a duplicate of bug 154399 ***