Move and rename RenderBR to LayoutBR.

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
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- *
- */
-
-#ifndef RenderBR_h
-#define RenderBR_h
-
-#include "core/rendering/RenderText.h"
-
-/*
- * The whole class here is a hack to get <br> working, as long as we don't have support for
- * CSS2 :before and :after pseudo elements
- */
-namespace blink {
-
-class RenderBR final : public RenderText {
-public:
-    explicit RenderBR(Node*);
-    virtual ~RenderBR();
-
-    virtual const char* renderName() const override { return "RenderBR"; }
-
-    virtual LayoutRect selectionRectForPaintInvalidation(const LayoutLayerModelObject* /*paintInvalidationContainer*/) const 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; }
-
-    int lineHeight(bool firstLine) const;
-
-    // overrides
-    virtual bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectBr || RenderText::isOfType(type); }
-
-    virtual int caretMinOffset() const override;
-    virtual int caretMaxOffset() const override;
-
-    virtual PositionWithAffinity positionForPoint(const LayoutPoint&) override final;
-
-protected:
-    virtual void styleDidChange(StyleDifference, const LayoutStyle* oldStyle) override;
-};
-
-DEFINE_LAYOUT_OBJECT_TYPE_CASTS(RenderBR, isBR());
-
-} // namespace blink
-
-#endif // RenderBR_h