Bug 206714

media/track/video-track-addition-and-frame-removal.html is flaky crashing on macOS Catalina and Mojave Crash has been happening as far back as I can view the history I did not try to reproduce the crash History: https://results.webkit.org/?suite=layout-tests&test=media%2Ftrack%2Fvideo-track-addition-and-frame-removal.html Crasher: No crash log found for DumpRenderTree:23791. stdout: stderr: ASSERTION FAILED: !needsLayout() ./page/FrameView.cpp(4186) : virtual void WebCore::FrameView::paintContents(WebCore::GraphicsContext &, const WebCore::IntRect &, WebCore::Widget::SecurityOriginPaintPolicy) 1 0x10f4248f9 WTFCrash 2 0x1208677db WTFCrashWithInfo(int, char const*, char const*, int) 3 0x123dd518c WebCore::FrameView::paintContents(WebCore::GraphicsContext&, WebCore::IntRect const&, WebCore::Widget::SecurityOriginPaintPolicy) 4 0x10ded5349 -[WebFrame(WebInternal) _drawRect:contentsOnly:] 5 0x10defa786 -[WebHTMLView drawSingleRect:] 6 0x10defaeb3 -[WebHTMLView drawRect:] 7 0x7fff3a11a298 _NSViewDrawRect 8 0x7fff3a8930a4 -[NSView(NSInternal) _recursive:displayRectIgnoringOpacity:inContext:stopAtLayerBackedViews:] 9 0x10deed9a9 -[WebHTMLView(WebPrivate) _recursive:displayRectIgnoringOpacity:inContext:stopAtLayerBackedViews:] 10 0x7fff3a893435 -[NSView(NSInternal) _recursive:displayRectIgnoringOpacity:inContext:stopAtLayerBackedViews:] 11 0x7fff3a893435 -[NSView(NSInternal) _recursive:displayRectIgnoringOpacity:inContext:stopAtLayerBackedViews:] 12 0x7fff3a893435 -[NSView(NSInternal) _recursive:displayRectIgnoringOpacity:inContext:stopAtLayerBackedViews:] 13 0x7fff3a2ccf30 -[NSView displayRectIgnoringOpacity:inContext:] 14 0x122422e7e WebCore::Widget::paint(WebCore::GraphicsContext&, WebCore::IntRect const&, WebCore::Widget::SecurityOriginPaintPolicy) 15 0x12402a4d3 WebCore::ScrollView::paint(WebCore::GraphicsContext&, WebCore::IntRect const&, WebCore::Widget::SecurityOriginPaintPolicy) 16 0x1248678fc WebCore::RenderWidget::paintContents(WebCore::PaintInfo&, WebCore::LayoutPoint const&) 17 0x124868191 WebCore::RenderWidget::paint(WebCore::PaintInfo&, WebCore::LayoutPoint const&) 18 0x12470e693 WebCore::RenderLayer::paintForegroundForFragmentsWithPhase(WebCore::PaintPhase, WTF::Vector<WebCore::LayerFragment, 1ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&, WebCore::GraphicsContext&, WebCore::RenderLayer::LayerPaintingInfo const&, WTF::OptionSet<WebCore::PaintBehavior>, WebCore::RenderObject*) 19 0x12470c22a WebCore::RenderLayer::paintForegroundForFragments(WTF::Vector<WebCore::LayerFragment, 1ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&, WebCore::GraphicsContext&, WebCore::GraphicsContext&, WebCore::LayoutRect const&, bool, WebCore::RenderLayer::LayerPaintingInfo const&, WTF::OptionSet<WebCore::PaintBehavior>, WebCore::RenderObject*) 20 0x1247086ab WebCore::RenderLayer::paintLayerContents(WebCore::GraphicsContext&, WebCore::RenderLayer::LayerPaintingInfo const&, WTF::OptionSet<WebCore::RenderLayer::PaintLayerFlag>) 21 0x124727f1c WebCore::RenderLayerBacking::paintIntoLayer(WebCore::GraphicsLayer const*, WebCore::GraphicsContext&, WebCore::IntRect const&, WTF::OptionSet<WebCore::PaintBehavior>, WebCore::EventRegionContext*)::$_10::operator()(WebCore::RenderLayer&, WTF::OptionSet<WebCore::RenderLayer::PaintLayerFlag>) const 22 0x124727907 WebCore::RenderLayerBacking::paintIntoLayer(WebCore::GraphicsLayer const*, WebCore::GraphicsContext&, WebCore::IntRect const&, WTF::OptionSet<WebCore::PaintBehavior>, WebCore::EventRegionContext*) 23 0x1247290c2 WebCore::RenderLayerBacking::paintContents(WebCore::GraphicsLayer const*, WebCore::GraphicsContext&, WebCore::FloatRect const&, unsigned int) 24 0x124182f40 WebCore::GraphicsLayer::paintGraphicsLayerContents(WebCore::GraphicsContext&, WebCore::FloatRect const&, unsigned int) 25 0x12420b83d WebCore::GraphicsLayerCA::platformCALayerPaintContents(WebCore::PlatformCALayer*, WebCore::GraphicsContext&, WebCore::FloatRect const&, unsigned int) 26 0x121fa9d51 WebCore::PlatformCALayer::drawLayerContents(WebCore::GraphicsContext&, WebCore::PlatformCALayer*, WTF::Vector<WebCore::FloatRect, 5ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&, unsigned int) 27 0x12218433d -[WebLayer drawInContext:] 28 0x7fff485ff9a4 CABackingStoreUpdate_ 29 0x7fff486560b5 invocation function for block in CA::Layer::display_() 30 0x7fff485fec7a -[CALayer _display] 31 0x12218493b -[WebSimpleLayer display]