bindings: Adds virtual ScriptWrappable::wrap method.

Source/core/html/HTMLAudioElement.h

Index: Source/core/html/HTMLAudioElement.h
diff --git a/Source/core/html/HTMLAudioElement.h b/Source/core/html/HTMLAudioElement.h
index fc97df42c1fa2b61281f82b37184a26c98da4a44..1c8e1f77fe1c7db071dec83f6e2350a408f308d1 100644
--- a/Source/core/html/HTMLAudioElement.h
+++ b/Source/core/html/HTMLAudioElement.h
@@ -34,6 +34,7 @@ namespace blink {
 class Document;
 
 class HTMLAudioElement FINAL : public HTMLMediaElement {
+    DEFINE_WRAPPERTYPEINFO();
 public:
     static PassRefPtrWillBeRawPtr<HTMLAudioElement> create(Document&);
     static PassRefPtrWillBeRawPtr<HTMLAudioElement> createForJSConstructor(Document&, const AtomicString& src);
@@ -44,6 +45,6 @@ private:
     HTMLAudioElement(Document&);
 };
 
-} //namespace
+} // namespace blink
 
-#endif
+#endif // HTMLAudioElement_h