[SVG] SVGLength{,List} migration to new SVG property impl.

Source/core/rendering/svg/SVGTextChunkBuilder.cpp

 /*
  * 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 109 matching lines @@
         break;
     case TA_END:
         chunkStyle |= SVGTextChunk::EndAnchor;
         break;
     };
 
     // Handle 'lengthAdjust' property.
     float desiredTextLength = 0;
     if (SVGTextContentElement* textContentElement = SVGTextContentElement::elementFromRenderer(textRenderer->parent())) {
         SVGLengthContext lengthContext(textContentElement);
-        desiredTextLength = textContentElement->specifiedTextLength().value(lengthContext);
+        if (textContentElement->textLengthIsSpecifiedByUser())
+            desiredTextLength = textContentElement->textLength()->currentValue()->value(lengthContext);
+        else
+            desiredTextLength = 0;
 
         switch (textContentElement->lengthAdjustCurrentValue()) {
         case SVGLengthAdjustUnknown:
             break;
         case SVGLengthAdjustSpacing:
             chunkStyle |= SVGTextChunk::LengthAdjustSpacing;
             break;
         case SVGLengthAdjustSpacingAndGlyphs:
             chunkStyle |= SVGTextChunk::LengthAdjustSpacingAndGlyphs;
             break;
@@ skipping 112 matching lines @@
 
     if (isVerticalText)
         spacingAndGlyphsTransform.scaleNonUniform(1, scale);
     else
         spacingAndGlyphsTransform.scaleNonUniform(scale, 1);
 
     spacingAndGlyphsTransform.translate(-fragment.x, -fragment.y);
 }
 
 }