Walk render tree instead of render layers for paint.

sky/engine/core/rendering/EllipsisBox.h

Index: sky/engine/core/rendering/EllipsisBox.h
diff --git a/sky/engine/core/rendering/EllipsisBox.h b/sky/engine/core/rendering/EllipsisBox.h
index d2407bc0a4756f7871800d7a0436f910647a043e..24606f265b27bc8148eca2b683bd2aafe45faf39 100644
--- a/sky/engine/core/rendering/EllipsisBox.h
+++ b/sky/engine/core/rendering/EllipsisBox.h
@@ -40,14 +40,14 @@ public:
         setHasVirtualLogicalHeight();
     }
 
-    virtual void paint(PaintInfo&, const LayoutPoint&, LayoutUnit lineTop, LayoutUnit lineBottom) override;
+    virtual void paint(PaintInfo&, const LayoutPoint&, LayoutUnit lineTop, LayoutUnit lineBottom, Vector<RenderBox*> layers) override;
     virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit lineTop, LayoutUnit lineBottom) override;
     void setSelectionState(RenderObject::SelectionState s) { m_selectionState = s; }
     IntRect selectionRect();
 
     virtual float virtualLogicalHeight() const override { return m_height; }
 private:
-    void paintMarkupBox(PaintInfo&, const LayoutPoint& paintOffset, LayoutUnit lineTop, LayoutUnit lineBottom, RenderStyle*);
+    void paintMarkupBox(PaintInfo&, const LayoutPoint& paintOffset, LayoutUnit lineTop, LayoutUnit lineBottom, RenderStyle*, Vector<RenderBox*> layers);
     int height() const { return m_height; }
     virtual RenderObject::SelectionState selectionState() override { return m_selectionState; }
     void paintSelection(GraphicsContext*, const FloatPoint&, RenderStyle*, const Font&);