Remove QualifiedName argument from SVGElement::create functions

Source/core/svg/SVGTSpanElement.cpp

Index: Source/core/svg/SVGTSpanElement.cpp
diff --git a/Source/core/svg/SVGTSpanElement.cpp b/Source/core/svg/SVGTSpanElement.cpp
index 7b47b96553ec7e78c5cce9f607b080c115346604..77f13fcb23f3ec1aa3d538b84646333097a20b3d 100644
--- a/Source/core/svg/SVGTSpanElement.cpp
+++ b/Source/core/svg/SVGTSpanElement.cpp
@@ -27,16 +27,15 @@
 
 namespace WebCore {
 
-inline SVGTSpanElement::SVGTSpanElement(const QualifiedName& tagName, Document& document)
-    : SVGTextPositioningElement(tagName, document)
+inline SVGTSpanElement::SVGTSpanElement(Document& document)
+    : SVGTextPositioningElement(SVGNames::tspanTag, document)
 {
-    ASSERT(hasTagName(SVGNames::tspanTag));
     ScriptWrappable::init(this);
 }
 
-PassRefPtr<SVGTSpanElement> SVGTSpanElement::create(const QualifiedName& tagName, Document& document)
+PassRefPtr<SVGTSpanElement> SVGTSpanElement::create(Document& document)
 {
-    return adoptRef(new SVGTSpanElement(tagName, document));
+    return adoptRef(new SVGTSpanElement(document));
 }
 
 RenderObject* SVGTSpanElement::createRenderer(RenderStyle*)