Drop [LegacyImplementedInBaseClass] from SVGURIReference IDL interface

Source/core/svg/SVGURIReference.h

Index: Source/core/svg/SVGURIReference.h
diff --git a/Source/core/svg/SVGURIReference.h b/Source/core/svg/SVGURIReference.h
index ee59ed66bcd6d57cdc303d5dadf05451491d2989..93d4d072ab0dda5180be8dc767720726a9b9c0f0 100644
--- a/Source/core/svg/SVGURIReference.h
+++ b/Source/core/svg/SVGURIReference.h
@@ -22,6 +22,7 @@
 #define SVGURIReference_h
 
 #include "core/dom/Document.h"
+#include "core/svg/SVGAnimatedString.h"
 
 namespace WebCore {
 
@@ -48,6 +49,20 @@ public:
         KURL url = document.completeURL(uri);
         return !equalIgnoringFragmentIdentifier(url, document.url());
     }
+
+    // SVGURIReference JS API.
+    static SVGAnimatedString* href(SVGURIReference* object) { return object->href(); }
+
+    SVGAnimatedString* href() const { return m_href.get(); }
+    const String& hrefString() const { return m_href->currentValue()->value(); }
+
+    bool parseAttribute(const QualifiedName&, const AtomicString& value, SVGParsingError&);
+
+protected:
+    explicit SVGURIReference(SVGElement*);
+
+private:
+    RefPtr<SVGAnimatedString> m_href;
 };
 
 } // namespace WebCore