Walk render tree instead of render layers for paint.

sky/engine/core/rendering/RootInlineBox.h

 /*
  * Copyright (C) 2003, 2006, 2007, 2008 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,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 84 matching lines @@
 
     bool lineCanAccommodateEllipsis(bool ltr, int blockEdge, int lineBoxEdge, int ellipsisWidth);
     // Return the truncatedWidth, the width of the truncated text + ellipsis.
     float placeEllipsis(const AtomicString& ellipsisStr, bool ltr, float blockLeftEdge, float blockRightEdge, float ellipsisWidth, InlineBox* markupBox = 0);
     // Return the position of the EllipsisBox or -1.
     virtual float placeEllipsisBox(bool ltr, float blockLeftEdge, float blockRightEdge, float ellipsisWidth, float &truncatedWidth, bool& foundBox) override final;
 
     using InlineBox::hasEllipsisBox;
     EllipsisBox* ellipsisBox() const;
 
-    void paintEllipsisBox(PaintInfo&, const LayoutPoint&, LayoutUnit lineTop, LayoutUnit lineBottom) const;
+    void paintEllipsisBox(PaintInfo&, const LayoutPoint&, LayoutUnit lineTop, LayoutUnit lineBottom, Vector<RenderBox*> layers) const;
 
     virtual void clearTruncation() override final;
 
     virtual int baselinePosition(FontBaseline baselineType) const override final;
     virtual LayoutUnit lineHeight() const override final;
 
-    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 final;
 
     using InlineBox::hasSelectedChildren;
     using InlineBox::setHasSelectedChildren;
 
     virtual RenderObject::SelectionState selectionState() override final;
     InlineBox* firstSelectedBox();
     InlineBox* lastSelectedBox();
 
     GapRects lineSelectionGap(RenderBlock* rootBlock, const LayoutPoint& rootBlockPhysicalPosition, const LayoutSize& offsetFromRootBlock, LayoutUnit selTop, LayoutUnit selHeight, const PaintInfo*);
@@ skipping 103 matching lines @@
     LayoutUnit m_lineTop;
     LayoutUnit m_lineBottom;
     LayoutUnit m_lineTopWithLeading;
     LayoutUnit m_lineBottomWithLeading;
     LayoutUnit m_selectionBottom;
 };
 
 } // namespace blink
 
 #endif  // SKY_ENGINE_CORE_RENDERING_ROOTINLINEBOX_H_