Make SVGTextPositioningElement::elementFromRenderer take a reference

Source/core/rendering/svg/RenderSVGText.cpp

Index: Source/core/rendering/svg/RenderSVGText.cpp
diff --git a/Source/core/rendering/svg/RenderSVGText.cpp b/Source/core/rendering/svg/RenderSVGText.cpp
index 74addd187da30a6665334356c56111d8fa54d666..604ff37483ef2694fb16c1c827fb55988955fbbb 100644
--- a/Source/core/rendering/svg/RenderSVGText.cpp
+++ b/Source/core/rendering/svg/RenderSVGText.cpp
@@ -337,7 +337,7 @@ void RenderSVGText::layout()
         ASSERT(m_layoutAttributes.isEmpty());
         collectLayoutAttributes(this, m_layoutAttributes);
         updateFontInAllDescendants(this);
-        m_layoutAttributesBuilder.buildLayoutAttributesForForSubtree(this);
+        m_layoutAttributesBuilder.buildLayoutAttributesForForSubtree(*this);
 
         m_needsReordering = true;
         m_needsTextMetricsUpdate = false;
@@ -351,7 +351,7 @@ void RenderSVGText::layout()
             m_needsTextMetricsUpdate = false;
         }
 
-        m_layoutAttributesBuilder.buildLayoutAttributesForForSubtree(this);
+        m_layoutAttributesBuilder.buildLayoutAttributesForForSubtree(*this);
         m_needsReordering = true;
         m_needsPositioningValuesUpdate = false;
         updateCachedBoundariesInParents = true;