Change RenderObject::style(bool) to accept an enum instead

Source/core/rendering/RenderBR.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *
  * 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 21 matching lines @@
 class RenderBR FINAL : public RenderText {
 public:
     explicit RenderBR(Node*);
     virtual ~RenderBR();
 
     virtual const char* renderName() const OVERRIDE { return "RenderBR"; }
 
     virtual LayoutRect selectionRectForPaintInvalidation(const RenderLayerModelObject* /*paintInvalidationContainer*/, bool /*clipToVisibleContent*/) OVERRIDE { return LayoutRect(); }
 
     virtual float width(unsigned /*from*/, unsigned /*len*/, const Font&, float /*xPos*/, TextDirection, HashSet<const SimpleFontData*>* = 0 /*fallbackFonts*/ , GlyphOverflow* = 0) const OVERRIDE { return 0; }
-    virtual float width(unsigned /*from*/, unsigned /*len*/, float /*xpos*/, TextDirection, bool = false /*firstLine*/, HashSet<const SimpleFontData*>* = 0 /*fallbackFonts*/, GlyphOverflow* = 0) const OVERRIDE { return 0; }
+    virtual float width(unsigned /*from*/, unsigned /*len*/, float /*xpos*/, TextDirection, OwnOrFirstLineStyle = OwnStyle, HashSet<const SimpleFontData*>* = 0 /*fallbackFonts*/, GlyphOverflow* = 0) const OVERRIDE { return 0; }
 
-    int lineHeight(bool firstLine) const;
+    int lineHeight(OwnOrFirstLineStyle) const;
 
     // overrides
     virtual bool isBR() const OVERRIDE { return true; }
 
     virtual int caretMinOffset() const OVERRIDE;
     virtual int caretMaxOffset() const OVERRIDE;
 
     virtual PositionWithAffinity positionForPoint(const LayoutPoint&) OVERRIDE FINAL;
 
 protected:
     virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) OVERRIDE;
 };
 
 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderBR, isBR());
 
 } // namespace WebCore
 
 #endif // RenderBR_h