[Webkit-unassigned] [Bug 244756] New: Enable -autoDisplay in DumpRenderTree's window

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=244756

            Bug ID: 244756
           Summary: Enable -autoDisplay in DumpRenderTree's window
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: simon.fraser at apple.com

DumpRenderTree's calls -setAutoDisplay:NO on its window, unless there are compositing layers. Historically I think this was done to allow tests to control when painting happens, and to improve performance, but it would be better if DRT behaved more like WebKitTestRunner and had normal, rendering-update-drive repaint behavior.

-setAutoDisplay:NO even makes the window never appear on the screen (with --show-webview) so it hinders debugging, and makes it harder to adapt DRT to allow repaint testing via ref tests.

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