Bug 139596

Summary: Subpixel rendering: REGRESSION (r163272): Fixed positioned pseudo content leaves trails while scrolling.
Product: WebKit Reporter: zalan <zalan>
Component: Layout and RenderingAssignee: zalan <zalan>
Status: RESOLVED FIXED    
Severity: Normal CC: commit-queue, simon.fraser
Priority: P2 Keywords: InRadar
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on: 139632    
Bug Blocks:    
Attachments:
Description Flags
Test reduction.
none
Patch
none
Patch none

Description zalan 2014-12-12 14:02:37 PST 
1. go to http://ktinboulder.com/2014/10/16/my-last-day-at-pivotdesk/
2. start scrolling.
3. notice the fixed element on the left edge of the page leaves trails as the viewport is being scrolled.
Comment 1 zalan 2014-12-12 14:03:33 PST 
Created attachment 243213 [details]
Test reduction.
Comment 2 zalan 2014-12-12 14:03:55 PST 
rdar://problem/18697851
Comment 3 zalan 2014-12-12 14:26:15 PST 
Created attachment 243216 [details]
Patch
Comment 4 zalan 2014-12-12 14:29:31 PST 
Created attachment 243217 [details]
Patch
Comment 5 WebKit Commit Bot 2014-12-12 15:35:04 PST 
Comment on attachment 243217 [details]
Patch

Clearing flags on attachment: 243217

Committed r177243: <http://trac.webkit.org/changeset/177243>
Comment 6 WebKit Commit Bot 2014-12-12 15:35:10 PST 
All reviewed patches have been landed.  Closing bug.
Comment 7 WebKit Commit Bot 2014-12-14 18:46:09 PST 
Re-opened since this is blocked by bug 139632
Comment 8 Alexey Proskuryakov 2014-12-19 12:18:17 PST 
I'm not sure why commit queue re-opened this bug, but it doesn't look like the patch was rolled out.