Move rendering/RenderBox to layout/LayoutBox.

Source/core/paint/FieldsetPainter.cpp

Index: Source/core/paint/FieldsetPainter.cpp
diff --git a/Source/core/paint/FieldsetPainter.cpp b/Source/core/paint/FieldsetPainter.cpp
index bc32c46d034d57bfcbd3662ff388b31d1addff53..ad9635c4dd2ba26036cf9eccdde64bf45c40bc5e 100644
--- a/Source/core/paint/FieldsetPainter.cpp
+++ b/Source/core/paint/FieldsetPainter.cpp
@@ -19,7 +19,7 @@ void FieldsetPainter::paintBoxDecorationBackground(const PaintInfo& paintInfo, c
         return;
 
     LayoutRect paintRect(paintOffset, m_layoutFieldset.size());
-    RenderBox* legend = m_layoutFieldset.findLegend();
+    LayoutBox* legend = m_layoutFieldset.findLegend();
     if (!legend)
         return BoxPainter(m_layoutFieldset).paintBoxDecorationBackground(paintInfo, paintOffset);
 
@@ -76,7 +76,7 @@ void FieldsetPainter::paintMask(const PaintInfo& paintInfo, const LayoutPoint& p
         return;
 
     LayoutRect paintRect = LayoutRect(paintOffset, m_layoutFieldset.size());
-    RenderBox* legend = m_layoutFieldset.findLegend();
+    LayoutBox* legend = m_layoutFieldset.findLegend();
     if (!legend)
         return BoxPainter(m_layoutFieldset).paintMask(paintInfo, paintOffset);