[Webkit-unassigned] [Bug 193542] New: [Win] Scrolling should not repaint dirty region.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=193542

            Bug ID: 193542
           Summary: [Win] Scrolling should not repaint dirty region.
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: pvollan at apple.com

The patch in https://bugs.webkit.org/show_bug.cgi?id=173152 fixes repaint glitches when scrolling on systems with non-integral device scale factors. The patch repaints the dirty region, which is suboptimal. This should be fixed.

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