[Webkit-unassigned] [Bug 168831] New: Repaints on scrollers with background gradient every frame

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=168831

            Bug ID: 168831
           Summary: Repaints on scrollers with background gradient every
                    frame
    Classification: Unclassified
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: surma at google.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

Reproduction steps:
1.) Open http://output.jsbin.com/waxuyo/quiet
2.) Enable repaint flashing
3.) Scroll the bottom scroller with a background gradients

It repaints on scroll on both LoDPI and HiDPI devices.

Safari TP 10.2 Release 23 had it fixed, Release 24 repaints again.

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