Bug 143648

Summary:	RenderListBox passes row indexes to ScrollableArea, which expects pixel offsets
Product:	WebKit	Reporter:	Simon Fraser (smfr) <simon.fraser>
Component:	Layout and Rendering	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	bfulgham, jhoneycutt, simon.fraser
Priority:	P2
Version:	528+ (Nightly build)
Hardware:	Unspecified
OS:	Unspecified

Description Simon Fraser (smfr) 2015-04-12 12:30:41 PDT

RenderListBox scrolls in terms of list index, but lots of ScrollableArea/ScrollAnimtor code (e.g. ScrollAnimatorMac::adjustScrollPositionIfNecessary()) assumes they are getting pixel values.