Bug 199321

Summary: REGRESSION (r239984): pages with custom scrollbars also show normal scrollbars
Product: WebKit Reporter: Simon Fraser (smfr) <simon.fraser>
Component: ScrollingAssignee: Simon Fraser (smfr) <simon.fraser>
Status: RESOLVED FIXED    
Severity: Normal CC: commit-queue, koivisto, simon.fraser, thorton, timothy, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Patch none

Simon Fraser (smfr)
Reported 2019-06-28 09:46:09 PDT
and we paint the scrollbars on the main thread, causing flickering.
Attachments
Patch (4.80 KB, patch)
2019-06-28 10:48 PDT, Simon Fraser (smfr) 		no flags
DetailsFormatted DiffDiff
View All Add attachment proposed patch, testcase, etc.
Simon Fraser (smfr)
Comment 1 2019-06-28 09:46:21 PDT
<rdar://problem/52308095>
Simon Fraser (smfr)
Comment 2 2019-06-28 10:05:53 PDT
theme().registerScrollbar(*this), called from Scrollbar's constructor, is trying to call virtual functions which RenderScrollbar overrides.
Simon Fraser (smfr)
Comment 3 2019-06-28 10:48:50 PDT
Created attachment 373131 [details] Patch
WebKit Commit Bot
Comment 4 2019-06-28 13:23:18 PDT
Comment on attachment 373131 [details] Patch Clearing flags on attachment: 373131 Committed r246934: <https://trac.webkit.org/changeset/246934>
WebKit Commit Bot
Comment 5 2019-06-28 13:23:19 PDT
All reviewed patches have been landed. Closing bug.
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