Remove SVGElement::rendererIsNeeded

Source/core/svg/SVGTextPathElement.cpp

Index: Source/core/svg/SVGTextPathElement.cpp
diff --git a/Source/core/svg/SVGTextPathElement.cpp b/Source/core/svg/SVGTextPathElement.cpp
index 8c42b33d570485456e7da5375ac6faadee618543..49e1bf137e3cfe5cf689e94d5ecc04168fea9a1f 100644
--- a/Source/core/svg/SVGTextPathElement.cpp
+++ b/Source/core/svg/SVGTextPathElement.cpp
@@ -135,10 +135,12 @@ RenderObject* SVGTextPathElement::createRenderer(RenderStyle*)
 
 bool SVGTextPathElement::rendererIsNeeded(const RenderStyle& style)
 {
-    if (parentNode() && (isSVGAElement(*parentNode()) || isSVGTextElement(*parentNode())))
-        return Element::rendererIsNeeded(style);
+    if (!parentNode() || !(isSVGAElement(*parentNode()) || isSVGTextElement(*parentNode())))

[esprehn, 2014/06/20 07:58:26]

It shouldn't be possible to get in here without a parentNode().

If you do want to leave the check please break this if into two statements and
propagate the !.

+        return false;
 
-    return false;
+    if (!isValid())
+        return false;
+    return Element::rendererIsNeeded(style);
 }
 
 void SVGTextPathElement::buildPendingResource()