Walk render tree instead of render layers for paint.

sky/engine/core/rendering/InlineFlowBox.cpp

 /*
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 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,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 971 matching lines @@
 
     if (visibleToHitTestRequest(request) && locationInContainer.intersects(rect)) {
         renderer().updateHitTestResult(result, locationInContainer.point() - toLayoutSize(accumulatedOffset)); // Don't add in m_x or m_y here, we want coords in the containing block's space.
         if (!result.addNodeToRectBasedTestResult(renderer().node(), request, locationInContainer, rect))
             return true;
     }
 
     return false;
 }
 
-void InlineFlowBox::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset, LayoutUnit lineTop, LayoutUnit lineBottom)
+void InlineFlowBox::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset, LayoutUnit lineTop, LayoutUnit lineBottom, Vector<RenderBox*> layers)

[esprehn, 2015/02/05 23:47:00]

reference.

 {
     LayoutRect overflowRect(visualOverflowRect(lineTop, lineBottom));
     overflowRect.moveBy(paintOffset);
 
     if (!paintInfo.rect.intersects(pixelSnappedIntRect(overflowRect)))
         return;
 
     paintBoxDecorationBackground(paintInfo, paintOffset);
 
     for (InlineBox* curr = firstChild(); curr; curr = curr->nextOnLine()) {
         if (curr->renderer().isText() || !curr->boxModelObject()->hasSelfPaintingLayer())
-            curr->paint(paintInfo, paintOffset, lineTop, lineBottom);
+            curr->paint(paintInfo, paintOffset, lineTop, lineBottom, layers);
     }
 }
 
 void InlineFlowBox::paintFillLayers(const PaintInfo& paintInfo, const Color& c, const FillLayer& fillLayer, const LayoutRect& rect)
 {
     if (fillLayer.next())
         paintFillLayers(paintInfo, c, *fillLayer.next(), rect);
     paintFillLayer(paintInfo, c, fillLayer, rect);
 }
 
@@ skipping 337 matching lines @@
         ASSERT(child->prevOnLine() == prev);
         prev = child;
     }
     ASSERT(prev == m_lastChild);
 #endif
 }
 
 #endif
 
 } // namespace blink