Generate toSVGFooElement() for SVGFELight|AnimateMotion|FontFaceSrc|TextPositioningElement

Source/core/svg/SVGTextPositioningElement.h

Index: Source/core/svg/SVGTextPositioningElement.h
diff --git a/Source/core/svg/SVGTextPositioningElement.h b/Source/core/svg/SVGTextPositioningElement.h
index aa2ce00b3d288f289b976718006af418df9cda5c..f81235366013bfb6943470f7c66a6ffad038d3e4 100644
--- a/Source/core/svg/SVGTextPositioningElement.h
+++ b/Source/core/svg/SVGTextPositioningElement.h
@@ -21,6 +21,7 @@
 #ifndef SVGTextPositioningElement_h
 #define SVGTextPositioningElement_h
 
+#include "SVGNames.h"
 #include "core/svg/SVGAnimatedLengthList.h"
 #include "core/svg/SVGAnimatedNumberList.h"
 #include "core/svg/SVGTextContentElement.h"
@@ -42,6 +43,7 @@ protected:
     bool isSupportedAttribute(const QualifiedName&);
     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE FINAL;
     virtual void svgAttributeChanged(const QualifiedName&) OVERRIDE FINAL;
+    virtual bool isTextPositioning() const OVERRIDE FINAL { return true; }
 
     RefPtr<SVGAnimatedLengthList> m_x;
     RefPtr<SVGAnimatedLengthList> m_y;
@@ -52,6 +54,13 @@ protected:
     END_DECLARE_ANIMATED_PROPERTIES
 };
 
+inline bool isSVGTextPositioningElement(const Node& node)
+{
+    return node.isSVGElement() && toSVGElement(node).isTextPositioning();
+}
+
+DEFINE_NODE_TYPE_CASTS_WITH_FUNCTION(SVGTextPositioningElement);
+
 } // namespace WebCore
 
 #endif