Make RenderObject::style() return a const object

Source/core/rendering/InlineTextBox.h

 /*
  * (C) 1999 Lars Knoll (knoll@kde.org)
  * (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *
  * 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 62 matching lines @@
     using InlineBox::hasHyphen;
     using InlineBox::setHasHyphen;
     using InlineBox::canHaveLeadingExpansion;
     using InlineBox::setCanHaveLeadingExpansion;
 
     static inline bool compareByStart(const InlineTextBox* first, const InlineTextBox* second) { return first->start() < second->start(); }
 
     virtual int baselinePosition(FontBaseline) const override final;
     virtual LayoutUnit lineHeight() const override final;
 
-    bool getEmphasisMarkPosition(RenderStyle*, TextEmphasisPosition&) const;
+    bool getEmphasisMarkPosition(const RenderStyle*, TextEmphasisPosition&) const;
 
     LayoutRect logicalOverflowRect() const;
     void setLogicalOverflowRect(const LayoutRect&);
     LayoutUnit logicalTopVisualOverflow() const { return logicalOverflowRect().y(); }
     LayoutUnit logicalBottomVisualOverflow() const { return logicalOverflowRect().maxY(); }
 
     // charactersWithHyphen, if provided, must not be destroyed before the TextRun.
-    TextRun constructTextRun(RenderStyle*, const Font&, StringBuilder* charactersWithHyphen = 0) const;
-    TextRun constructTextRun(RenderStyle*, const Font&, StringView, int maximumLength, StringBuilder* charactersWithHyphen = 0) const;
+    TextRun constructTextRun(const RenderStyle*, const Font&, StringBuilder* charactersWithHyphen = 0) const;
+    TextRun constructTextRun(const RenderStyle*, const Font&, StringView, int maximumLength, StringBuilder* charactersWithHyphen = 0) const;
 
 #ifndef NDEBUG
     virtual void showBox(int = 0) const override;
     virtual const char* boxName() const override;
 #endif
 
 public:
-    TextRun constructTextRunForInspector(RenderStyle*, const Font&) const;
+    TextRun constructTextRunForInspector(const RenderStyle*, const Font&) const;
     virtual FloatRectWillBeLayoutRect calculateBoundaries() const override { return FloatRectWillBeLayoutRect(x(), y(), width(), height()); }
 
     virtual LayoutRect localSelectionRect(int startPos, int endPos);
     bool isSelected(int startPos, int endPos) const;
     void selectionStartEnd(int& sPos, int& ePos) const;
 
     // These functions both paint markers and update the DocumentMarker's renderedRect.
-    virtual void paintDocumentMarker(GraphicsContext*, const FloatPointWillBeLayoutPoint& boxOrigin, DocumentMarker*, RenderStyle*, const Font&, bool grammar);
-    virtual void paintTextMatchMarker(GraphicsContext*, const FloatPointWillBeLayoutPoint& boxOrigin, DocumentMarker*, RenderStyle*, const Font&);
+    virtual void paintDocumentMarker(GraphicsContext*, const FloatPointWillBeLayoutPoint& boxOrigin, DocumentMarker*, const RenderStyle*, const Font&, bool grammar);
+    virtual void paintTextMatchMarker(GraphicsContext*, const FloatPointWillBeLayoutPoint& boxOrigin, DocumentMarker*, const RenderStyle*, const Font&);
 
 protected:
     virtual void paint(const PaintInfo&, const LayoutPoint&, LayoutUnit lineTop, LayoutUnit lineBottom) override;
     virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit lineTop, LayoutUnit lineBottom) override;
 
 private:
     virtual void deleteLine() override final;
     virtual void extractLine() override final;
     virtual void attachLine() override final;
 
@@ skipping 50 matching lines @@
     }
 };
 
 DEFINE_INLINE_BOX_TYPE_CASTS(InlineTextBox);
 
 void alignSelectionRectToDevicePixels(FloatRectWillBeLayoutRect&);
 
 } // namespace blink
 
 #endif // InlineTextBox_h