[Webkit-unassigned] [Bug 167548] New: [GTK] ASSERTION FAILED: !m_layerTreeHost in DrawingAreaImpl::display()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=167548

            Bug ID: 167548
           Summary: [GTK] ASSERTION FAILED: !m_layerTreeHost in
                    DrawingAreaImpl::display()
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Keywords: Gtk
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: cgarcia at igalia.com
                CC: bugs-noreply at webkitgtk.org

The problem is that non accelerated compositing forceRepaint implementation is doing a layout and then calling display. The layout makes the drawing area enter in AC mode and display asserts that we have a layer tree host. forceRepaint shouldn't do the layout because display already does that and it correctly handles the case of entering AC mode during the layout. It shouldn't call setNeedsDisplay either, because that schedules a display, but we are going to display synchronously.

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