Revert "[CSS Shapes] clamp RasterShape shapeMargin to reference box size"

Source/core/rendering/shapes/RasterShape.cpp

Index: Source/core/rendering/shapes/RasterShape.cpp
diff --git a/Source/core/rendering/shapes/RasterShape.cpp b/Source/core/rendering/shapes/RasterShape.cpp
index 246eb84dd487b5a241ffad00991b4d70088d3a87..996a8b8625ae26012a68583461ec5425aa72ee09 100644
--- a/Source/core/rendering/shapes/RasterShape.cpp
+++ b/Source/core/rendering/shapes/RasterShape.cpp
@@ -255,10 +255,11 @@ const RasterShapeIntervals& RasterShape::marginIntervals() const
     if (!shapeMargin())
         return *m_intervals;
 
-    int shapeMarginInt = clampToPositiveInteger(ceil(shapeMargin()));
-    int maxShapeMarginInt = std::max(m_marginRectSize.width(), m_marginRectSize.height()) * sqrt(2);
-    if (!m_marginIntervals)
-        m_marginIntervals = m_intervals->computeShapeMarginIntervals(std::min(shapeMarginInt, maxShapeMarginInt));
+    int marginBoundaryRadius = std::min(clampToInteger(ceil(shapeMargin())), std::max(m_imageSize.width(), m_imageSize.height()));
+    if (!m_marginIntervals) {
+        ASSERT(marginBoundaryRadius >= 0);
+        m_marginIntervals = m_intervals->computeShapeMarginIntervals(marginBoundaryRadius);
+    }
 
     return *m_marginIntervals;
 }