Return transform from transformationForTextBox instead of using out-param

Source/core/rendering/svg/SVGTextChunkBuilder.cpp

Index: Source/core/rendering/svg/SVGTextChunkBuilder.cpp
diff --git a/Source/core/rendering/svg/SVGTextChunkBuilder.cpp b/Source/core/rendering/svg/SVGTextChunkBuilder.cpp
index 34176c62b1d17736ee7e21aa47d0c132067c2706..4cfa2c540aaae959eee6a33b2f1a156fb0d621aa 100644
--- a/Source/core/rendering/svg/SVGTextChunkBuilder.cpp
+++ b/Source/core/rendering/svg/SVGTextChunkBuilder.cpp
@@ -31,15 +31,9 @@ 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)