Stacked floats with shape-outside should allow inline content to interact with the non-outermost fl…

Source/core/rendering/shapes/ShapeOutsideInfo.cpp

 /*
  * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above
  *    copyright notice, this list of conditions and the following
  *    disclaimer.
@@ skipping 57 matching lines @@
         LayoutUnit floatMarginBoxWidth = containingBlock->logicalWidthForFloat(floatingObject);
 
         if (lineOverlapsShapeBounds()) {
             SegmentList segments = computeSegmentsForLine(floatRelativeLineTop, lineHeight);
             if (segments.size()) {
                 LayoutUnit rawLeftMarginBoxDelta = segments.first().logicalLeft + containingBlock->marginStartForChild(m_renderer);
                 m_leftMarginBoxDelta = clampTo<LayoutUnit>(rawLeftMarginBoxDelta, LayoutUnit(), floatMarginBoxWidth);
 
                 LayoutUnit rawRightMarginBoxDelta = segments.last().logicalRight - containingBlock->logicalWidthForChild(m_renderer) - containingBlock->marginEndForChild(m_renderer);
                 m_rightMarginBoxDelta = clampTo<LayoutUnit>(rawRightMarginBoxDelta, -floatMarginBoxWidth, LayoutUnit());
+                m_lineOverlapsShape = true;
                 return;
             }
         }
 
         // Lines that do not overlap the shape should act as if the float
         // wasn't there for layout purposes. So we set the deltas to remove the
         // entire width of the float.
-        // FIXME: The latest CSS Shapes spec says that in this case, the
-        // content should interact with previously stacked floats on the line
-        // as if this outermost float did not exist. Perhaps obviously, this
-        // solution cannot do that, and will be revisted when that part of the
-        // spec is implemented.
         m_leftMarginBoxDelta = floatMarginBoxWidth;
         m_rightMarginBoxDelta = -floatMarginBoxWidth;
+        m_lineOverlapsShape = false;
     }
 }
 
 ShapeValue* ShapeOutsideInfo::shapeValue() const
 {
     return m_renderer->style()->shapeOutside();
 }
 
 }