Return transform from transformationForTextBox instead of using out-param

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 13 matching lines @@
 #include "core/rendering/svg/RenderSVGInlineText.h"
 #include "core/rendering/svg/SVGInlineTextBox.h"
 #include "core/svg/SVGLengthContext.h"
 
 namespace WebCore {
 
 SVGTextChunkBuilder::SVGTextChunkBuilder()
 {
 }
 
-void SVGTextChunkBuilder::transformationForTextBox(SVGInlineTextBox* textBox, AffineTransform& transform) const
+AffineTransform SVGTextChunkBuilder::transformationForTextBox(SVGInlineTextBox* textBox) const
 {
-    DEFINE_STATIC_LOCAL(const AffineTransform, s_identityTransform, ());
-    if (!m_textBoxTransformations.contains(textBox)) {
-        transform = s_identityTransform;
-        return;
-    }
-
-    transform = m_textBoxTransformations.get(textBox);
+    return m_textBoxTransformations.get(textBox);
 }
 
 void SVGTextChunkBuilder::buildTextChunks(Vector<SVGInlineTextBox*>& lineLayoutBoxes)
 {
     if (lineLayoutBoxes.isEmpty())
         return;
 
     bool foundStart = false;
     unsigned lastChunkStartPosition = 0;
     unsigned boxPosition = 0;
@@ skipping 202 matching lines @@
         SVGTextFragment& fragment = fragments[i];
 
         if (isVerticalText)
             fragment.y += textAnchorShift;
         else
             fragment.x += textAnchorShift;
     }
 }
 
 }