Replace RenderArena with PartitionAlloc

Source/core/svg/SVGAElement.cpp

Index: Source/core/svg/SVGAElement.cpp
diff --git a/Source/core/svg/SVGAElement.cpp b/Source/core/svg/SVGAElement.cpp
index 04ae952141ee5fd1d58bdb79e55f55ae134a97fd..e146769106553f218725efcb3c802869aeac5a71 100644
--- a/Source/core/svg/SVGAElement.cpp
+++ b/Source/core/svg/SVGAElement.cpp
@@ -145,9 +145,9 @@ void SVGAElement::svgAttributeChanged(const QualifiedName& attrName)
 RenderObject* SVGAElement::createRenderer(RenderStyle*)
 {
     if (parentNode() && parentNode()->isSVGElement() && toSVGElement(parentNode())->isTextContent())
-        return new (document()->renderArena()) RenderSVGInline(this);
+        return new RenderSVGInline(this);
 
-    return new (document()->renderArena()) RenderSVGTransformableContainer(this);
+    return new RenderSVGTransformableContainer(this);
 }
 
 void SVGAElement::defaultEventHandler(Event* event)