Bug 108112

Summary: position:fixed that doesn't render any content should not force compositing
Product: WebKit Reporter: Simon Fraser (smfr) <simon.fraser>
Component: Layout and RenderingAssignee: Simon Fraser (smfr) <simon.fraser>
Status: RESOLVED FIXED    
Severity: Normal CC: bdakin, dino, eric, ojan.autocc, shawnsingh, simon.fraser, thorton, webkit-bug-importer, webkit.review.bot
Priority: P2 Keywords: InRadar
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Patch bdakin: review+

Description Simon Fraser (smfr) 2013-01-28 13:43:33 PST
boingboing.net has lots of layers, because of an empty position:fixed div. We should not make that composited.
Comment 1 Radar WebKit Bug Importer 2013-01-28 13:44:21 PST
<rdar://problem/13099604>
Comment 2 Simon Fraser (smfr) 2013-01-28 15:01:15 PST
Created attachment 185077 [details]
Patch
Comment 3 Simon Fraser (smfr) 2013-01-28 20:18:54 PST
http://trac.webkit.org/changeset/141039