Minimize RenderObject* casting to RenderText*

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 31 matching lines @@
     InlineTextBox(RenderObject& obj)
         : InlineBox(obj)
         , m_prevTextBox(0)
         , m_nextTextBox(0)
         , m_start(0)
         , m_len(0)
         , m_truncation(cNoTruncation)
     {
     }
 
+    RenderText& renderer() const { return toRenderText(InlineBox::renderer()); }
+
     virtual void destroy() OVERRIDE FINAL;
 
     InlineTextBox* prevTextBox() const { return m_prevTextBox; }
     InlineTextBox* nextTextBox() const { return m_nextTextBox; }
     void setNextTextBox(InlineTextBox* n) { m_nextTextBox = n; }
     void setPreviousTextBox(InlineTextBox* p) { m_prevTextBox = p; }
 
     // FIXME: These accessors should ASSERT(!isDirty()). See https://bugs.webkit.org/show_bug.cgi?id=97264
     unsigned start() const { return m_start; }
     unsigned end() const { return m_len ? m_start + m_len - 1 : m_start; }
@@ skipping 46 matching lines @@
     virtual FloatRect calculateBoundaries() const OVERRIDE { return FloatRect(x(), y(), width(), height()); }
 
     virtual LayoutRect localSelectionRect(int startPos, int endPos);
     bool isSelected(int startPos, int endPos) const;
     void selectionStartEnd(int& sPos, int& ePos);
 
 protected:
     virtual void paint(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;
 
-public:
-    RenderText& textRenderer() const { return toRenderText(renderer()); }
-
 private:
     virtual void deleteLine() OVERRIDE FINAL;
     virtual void extractLine() OVERRIDE FINAL;
     virtual void attachLine() OVERRIDE FINAL;
 
 public:
     virtual RenderObject::SelectionState selectionState() OVERRIDE FINAL;
 
 private:
     virtual void clearTruncation() OVERRIDE FINAL { m_truncation = cNoTruncation; }
@@ skipping 68 matching lines @@
 
 inline AffineTransform InlineTextBox::rotation(const FloatRect& boxRect, RotationDirection rotationDirection)
 {
     return rotationDirection == Clockwise ? AffineTransform(0, 1, -1, 0, boxRect.x() + boxRect.maxY(), boxRect.maxY() - boxRect.x())
         : AffineTransform(0, -1, 1, 0, boxRect.x() - boxRect.maxY(), boxRect.x() + boxRect.maxY());
 }
 
 } // namespace blink
 
 #endif // InlineTextBox_h