[Webkit-unassigned] [Bug 243648] New: [Win] scrollbars/transparent-scrollbar.html is failing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=243648

            Bug ID: 243648
           Summary: [Win] scrollbars/transparent-scrollbar.html is failing
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Platform
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Hironori.Fujii at sony.com
        Depends on: 236061

[Win] scrollbars/transparent-scrollbar.html is failing

Since bug#236061 added the test, this test is failing on Windows EWS.
This test passes for my AppleWin build on my PC.
I think accelerated compositing doesn't work on Windows EWS.

In non-AC mode, scrollbars are painted by ScrollView::paintScrollbars.
ScrollView doesn't know the document background color.


Referenced Bugs:

https://bugs.webkit.org/show_bug.cgi?id=236061
[Bug 236061] The background of the main frame's transparent custom scrollbar should be filled with the view background color if !HAVE(RUBBER_BANDING)
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