Add UseCounter entry for SVGAnimationElement

Source/core/svg/SVGAnimationElement.cpp

Index: Source/core/svg/SVGAnimationElement.cpp
diff --git a/Source/core/svg/SVGAnimationElement.cpp b/Source/core/svg/SVGAnimationElement.cpp
index 8373fbbd8850285dc335fbb06681614b4f5accd5..0717ce79565d664cd84e77be0779282ed36be0e6 100644
--- a/Source/core/svg/SVGAnimationElement.cpp
+++ b/Source/core/svg/SVGAnimationElement.cpp
@@ -30,6 +30,7 @@
 #include "SVGNames.h"
 #include "core/css/CSSComputedStyleDeclaration.h"
 #include "core/css/CSSParser.h"
+#include "core/page/UseCounter.h"
 #include "core/platform/FloatConversion.h"
 #include "core/svg/SVGAnimateElement.h"
 #include "core/svg/SVGParserUtilities.h"
@@ -58,6 +59,8 @@ SVGAnimationElement::SVGAnimationElement(const QualifiedName& tagName, Document*
 {
     ScriptWrappable::init(this);
     registerAnimatedPropertiesForSVGAnimationElement();
+
+    UseCounter::count(document, UseCounter::SVGAnimationElement);
 }
 
 static void parseKeyTimes(const String& string, Vector<float>& result, bool verifyOrder)