Turn SVGTextMetricsBuilder into a namespace

Source/core/rendering/svg/SVGTextMetricsBuilder.cpp

 /*
  * 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 111 matching lines @@
         , lastCharacterWasWhiteSpace(true)
         , valueListPosition(0)
     {
     }
 
     SVGCharacterDataMap* allCharactersMap;
     bool lastCharacterWasWhiteSpace;
     unsigned valueListPosition;
 };
 
-void SVGTextMetricsBuilder::measureTextRenderer(RenderSVGInlineText* text, MeasureTextData* data, bool processRenderer)
+static void measureTextRenderer(RenderSVGInlineText* text, MeasureTextData* data, bool processRenderer)
 {
     ASSERT(text);
 
     SVGTextLayoutAttributes* attributes = text->layoutAttributes();
     Vector<SVGTextMetrics>* textMetricsValues = &attributes->textMetricsValues();
     if (processRenderer) {
         if (data->allCharactersMap)
             attributes->clear();
         else
             textMetricsValues->clear();
@@ skipping 35 matching lines @@
 
         data->lastCharacterWasWhiteSpace = characterIsWhiteSpace;
     }
 
     if (!data->allCharactersMap)
         return;
 
     data->valueListPosition += textPosition - skippedCharacters;
 }
 
-void SVGTextMetricsBuilder::walkTree(RenderObject* start, RenderSVGInlineText* stopAtLeaf, MeasureTextData* data)
+static void walkTree(RenderObject* start, RenderSVGInlineText* stopAtLeaf, MeasureTextData* data)
 {
     RenderObject* child = start->firstChild();
     while (child) {
         if (child->isSVGInlineText()) {
             RenderSVGInlineText* text = toRenderSVGInlineText(child);
             measureTextRenderer(text, data, !stopAtLeaf || stopAtLeaf == text);
             if (stopAtLeaf && stopAtLeaf == text)
                 return;
         } else if (child->isSVGInline()) {
             // Visit children of text content elements.
@@ skipping 19 matching lines @@
 }
 
 void SVGTextMetricsBuilder::buildMetricsAndLayoutAttributes(RenderSVGText* textRoot, RenderSVGInlineText* stopAtLeaf, SVGCharacterDataMap& allCharactersMap)
 {
     ASSERT(textRoot);
     MeasureTextData data(&allCharactersMap);
     walkTree(textRoot, stopAtLeaf, &data);
 }
 
 }