Count DOMImplementation.hasFeature usage and cases where it returns false

Source/core/dom/DOMImplementation.h

Index: Source/core/dom/DOMImplementation.h
diff --git a/Source/core/dom/DOMImplementation.h b/Source/core/dom/DOMImplementation.h
index 9f20a55e157d1ac500e4dbe574f107316f5bee1e..4fd231cf243fc881d2a98d265fa3fb7ccc68e373 100644
--- a/Source/core/dom/DOMImplementation.h
+++ b/Source/core/dom/DOMImplementation.h
@@ -50,6 +50,7 @@ public:
 
     // DOM methods & attributes for DOMImplementation
     static bool hasFeature(const String& feature, const String& version);
+    bool hasFeatureForBindings(const String& feature, const String& version);
     PassRefPtr<DocumentType> createDocumentType(const AtomicString& qualifiedName, const String& publicId, const String& systemId, ExceptionState&);
     PassRefPtr<Document> createDocument(const AtomicString& namespaceURI, const AtomicString& qualifiedName, DocumentType*, ExceptionState&);