Walk render tree instead of render layers for paint.

sky/engine/core/rendering/RenderReplaced.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 48 matching lines @@
 
     virtual LayoutUnit minimumReplacedHeight() const { return LayoutUnit(); }
 
     virtual void setSelectionState(SelectionState) override final;
 
     bool isSelected() const;
 
     void setIntrinsicSize(const LayoutSize& intrinsicSize) { m_intrinsicSize = intrinsicSize; }
     virtual void intrinsicSizeChanged();
 
-    virtual void paint(PaintInfo&, const LayoutPoint&) final;
+    virtual void paint(PaintInfo&, const LayoutPoint&, Vector<RenderBox*>& layers) final;
     bool shouldPaint(PaintInfo&, const LayoutPoint&);
     LayoutRect localSelectionRect(bool checkWhetherSelected = true) const; // This is in local coordinates, but it's a physical rect (so the top left corner is physical top left).
 
 private:
     virtual const char* renderName() const override { return "RenderReplaced"; }
 
     virtual bool canHaveChildren() const override { return false; }
 
     virtual void computePreferredLogicalWidths() override final;
     virtual void paintReplaced(PaintInfo&, const LayoutPoint&) { }
 
     virtual PositionWithAffinity positionForPoint(const LayoutPoint&) override final;
 
     virtual bool canBeSelectionLeaf() const override { return true; }
 
     void computeAspectRatioInformationForRenderBox(FloatSize& constrainedSize, double& intrinsicRatio) const;
 
     mutable LayoutSize m_intrinsicSize;
 };
 
 }
 
 #endif  // SKY_ENGINE_CORE_RENDERING_RENDERREPLACED_H_