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

Source/core/rendering/shapes/ShapeOutsideInfo.h

Index: Source/core/rendering/shapes/ShapeOutsideInfo.h
diff --git a/Source/core/rendering/shapes/ShapeOutsideInfo.h b/Source/core/rendering/shapes/ShapeOutsideInfo.h
index 17f5ddbd1ab52e20c07b143268da1908750c9e87..9e0dfdc2e380e91ac9ed488380cad68859087e6b 100644
--- a/Source/core/rendering/shapes/ShapeOutsideInfo.h
+++ b/Source/core/rendering/shapes/ShapeOutsideInfo.h
@@ -43,6 +43,7 @@ class ShapeOutsideInfo FINAL : public ShapeInfo<RenderBox>, public MappedInfo<Re
 public:
     LayoutUnit leftMarginBoxDelta() const { return m_leftMarginBoxDelta; }
     LayoutUnit rightMarginBoxDelta() const { return m_rightMarginBoxDelta; }
+    bool lineOverlapsShape() const { return m_lineOverlapsShape; }
 
     void updateDeltasForContainingBlockLine(const RenderBlockFlow*, const FloatingObject*, LayoutUnit lineTop, LayoutUnit lineHeight);
 
@@ -69,11 +70,15 @@ protected:
     }
 
 private:
-    ShapeOutsideInfo(const RenderBox* renderer) : ShapeInfo<RenderBox>(renderer) { }
+    ShapeOutsideInfo(const RenderBox* renderer)
+        : ShapeInfo<RenderBox>(renderer)
+        , m_lineOverlapsShape(false)
+    { }
 
     LayoutUnit m_leftMarginBoxDelta;
     LayoutUnit m_rightMarginBoxDelta;
     LayoutUnit m_lineTop;
+    bool m_lineOverlapsShape;
 };
 
 }