Reduce state kept in MeasureTextData by SVGTextMetricsBuilder

Source/core/rendering/svg/SVGTextMetricsBuilder.h

 /*
  * Copyright (C) Research In Motion Limited 2010-2012. 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 30 matching lines @@
     void buildMetricsAndLayoutAttributes(RenderSVGText*, RenderSVGInlineText* stopAtLeaf, SVGCharacterDataMap& allCharactersMap);
 
 private:
     bool advance();
     void advanceSimpleText();
     void advanceComplexText();
     bool currentCharacterStartsSurrogatePair() const;
 
     void initializeMeasurementWithTextRenderer(RenderSVGInlineText*);
     void walkTree(RenderObject*, RenderSVGInlineText* stopAtLeaf, MeasureTextData*);
-    void measureTextRenderer(RenderSVGInlineText*, MeasureTextData*);
+    void measureTextRenderer(RenderSVGInlineText*, MeasureTextData*, bool processRenderer);
 
     RenderSVGInlineText* m_text;
     TextRun m_run;
     unsigned m_textPosition;
     bool m_isComplexText;
     SVGTextMetrics m_currentMetrics;
     float m_totalWidth;
 
     // Simple text only.
     OwnPtr<WidthIterator> m_simpleWidthIterator;
 
     // Complex text only.
     SVGTextMetrics m_complexStartToCurrentMetrics;
 };
 
 } // namespace WebCore
 
 #endif