Allow to set display "inline" on legend element

third_party/WebKit/Source/core/layout/LayoutFieldset.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.
  *
  * 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.
@@ skipping 117 matching lines @@
     }
     return legend;
 }
 
 LayoutBox* LayoutFieldset::findInFlowLegend() const
 {
     for (LayoutObject* legend = firstChild(); legend; legend = legend->nextSibling()) {
         if (legend->isFloatingOrOutOfFlowPositioned())
             continue;
 
-        if (isHTMLLegendElement(legend->node()))
-            return toLayoutBox(legend);
+        if (isHTMLLegendElement(legend->node())) {
+            if (legend->isBox())
+                return toLayoutBox(legend);
+        }
     }
     return nullptr;
 }
 
 void LayoutFieldset::paintBoxDecorationBackground(const PaintInfo& paintInfo, const LayoutPoint& paintOffset) const
 {
     FieldsetPainter(*this).paintBoxDecorationBackground(paintInfo, paintOffset);
 }
 
 void LayoutFieldset::paintMask(const PaintInfo& paintInfo, const LayoutPoint& paintOffset) const
 {
     FieldsetPainter(*this).paintMask(paintInfo, paintOffset);
 }
 
 } // namespace blink