Drop SVGTextChunk::m_boxes

Source/core/layout/svg/SVGTextChunkBuilder.h

 /*
  * Copyright (C) Research In Motion Limited 2010. 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 26 matching lines @@
 
 class SVGTextChunkBuilder {
     WTF_MAKE_NONCOPYABLE(SVGTextChunkBuilder);
 public:
     SVGTextChunkBuilder();
 
     void processTextChunks(const Vector<SVGInlineTextBox*>&);
     void finalizeTransformMatrices(const Vector<SVGInlineTextBox*>&) const;
 
 protected:
-    virtual void handleTextChunk(const Vector<SVGInlineTextBox*>&, unsigned boxStart, unsigned boxEnd);
+    typedef Vector<SVGInlineTextBox*>::const_iterator BoxListConstIterator;
+
+    virtual void handleTextChunk(BoxListConstIterator boxStart, BoxListConstIterator boxEnd);
 
 private:
     void processTextLengthSpacingCorrection(bool isVerticalText, float textLengthShift, Vector<SVGTextFragment>&, unsigned& atCharacter);
     void processTextAnchorCorrection(bool isVerticalText, float textAnchorShift, Vector<SVGTextFragment>&);
 
     HashMap<SVGInlineTextBox*, AffineTransform> m_textBoxTransformations;
 };
 
 class SVGTextPathChunkBuilder final : public SVGTextChunkBuilder {
     WTF_MAKE_NONCOPYABLE(SVGTextPathChunkBuilder);
 public:
     SVGTextPathChunkBuilder();
 
     float totalLength() const { return m_totalLength; }
     unsigned totalCharacters() const { return m_totalCharacters; }
     float totalTextAnchorShift() const { return m_totalTextAnchorShift; }
 
 private:
-    void handleTextChunk(const Vector<SVGInlineTextBox*>&, unsigned boxStart, unsigned boxEnd) override;
+    void handleTextChunk(BoxListConstIterator boxStart, BoxListConstIterator boxEnd) override;
 
     float m_totalLength;
     unsigned m_totalCharacters;
     float m_totalTextAnchorShift;
 };
 
 } // namespace blink
 
 #endif