Have RenderBlockFlow sub-classes' methods call their super-class method properly.

Source/core/rendering/RenderFieldset.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 25 matching lines @@
 
 using namespace HTMLNames;
 
 RenderFieldset::RenderFieldset(Element* element)
     : RenderBlockFlow(element)
 {
 }
 
 void RenderFieldset::computePreferredLogicalWidths()
 {
-    RenderBlock::computePreferredLogicalWidths();
+    RenderBlockFlow::computePreferredLogicalWidths();
     if (RenderBox* legend = findLegend()) {
         int legendMinWidth = legend->minPreferredLogicalWidth();
 
         Length legendMarginLeft = legend->style()->marginLeft();
         Length legendMarginRight = legend->style()->marginLeft();
 
         if (legendMarginLeft.isFixed())
             legendMinWidth += legendMarginLeft.value();
 
         if (legendMarginRight.isFixed())
@@ skipping 79 matching lines @@
 }
 
 void RenderFieldset::paintBoxDecorations(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
 {
     if (!paintInfo.shouldPaintWithinRoot(this))
         return;
 
     LayoutRect paintRect(paintOffset, size());
     RenderBox* legend = findLegend();
     if (!legend)
-        return RenderBlock::paintBoxDecorations(paintInfo, paintOffset);
+        return RenderBlockFlow::paintBoxDecorations(paintInfo, paintOffset);
 
     // FIXME: We need to work with "rl" and "bt" block flow directions.  In those
     // cases the legend is embedded in the right and bottom borders respectively.
     // https://bugs.webkit.org/show_bug.cgi?id=47236
     if (style()->isHorizontalWritingMode()) {
         LayoutUnit yOff = (legend->y() > 0) ? LayoutUnit() : (legend->height() - borderTop()) / 2;
         paintRect.setHeight(paintRect.height() - yOff);
         paintRect.setY(paintRect.y() + yOff);
     } else {
         LayoutUnit xOff = (legend->x() > 0) ? LayoutUnit() : (legend->width() - borderLeft()) / 2;
@@ skipping 30 matching lines @@
 }
 
 void RenderFieldset::paintMask(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
 {
     if (style()->visibility() != VISIBLE || paintInfo.phase != PaintPhaseMask)
         return;
 
     LayoutRect paintRect = LayoutRect(paintOffset, size());
     RenderBox* legend = findLegend();
     if (!legend)
-        return RenderBlock::paintMask(paintInfo, paintOffset);
+        return RenderBlockFlow::paintMask(paintInfo, paintOffset);
 
     // FIXME: We need to work with "rl" and "bt" block flow directions.  In those
     // cases the legend is embedded in the right and bottom borders respectively.
     // https://bugs.webkit.org/show_bug.cgi?id=47236
     if (style()->isHorizontalWritingMode()) {
         LayoutUnit yOff = (legend->y() > 0) ? LayoutUnit() : (legend->height() - borderTop()) / 2;
         paintRect.expand(0, -yOff);
         paintRect.move(0, yOff);
     } else {
         LayoutUnit xOff = (legend->x() > 0) ? LayoutUnit() : (legend->width() - borderLeft()) / 2;
         paintRect.expand(-xOff, 0);
         paintRect.move(xOff, 0);
     }
 
     paintMaskImages(paintInfo, paintRect);
 }
 
 } // namespace WebCore