Add support for DOM4's XMLDocument interface

Source/core/dom/XMLDocument.h

Index: Source/core/dom/XMLDocument.h
diff --git a/Source/modules/speech/SpeechRecognitionAlternative.h b/Source/core/dom/XMLDocument.h
similarity index 64%
copy from Source/modules/speech/SpeechRecognitionAlternative.h
copy to Source/core/dom/XMLDocument.h
index 464fe9e276e55c1839128720679955974880448b..b65b19ca4252db5e31af60a994e778762187b971 100644
--- a/Source/modules/speech/SpeechRecognitionAlternative.h
+++ b/Source/core/dom/XMLDocument.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2012 Google Inc. All rights reserved.
+ * Copyright (C) 2014 Samsung Electronics. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -23,31 +23,32 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef SpeechRecognitionAlternative_h
-#define SpeechRecognitionAlternative_h
+#ifndef XMLDocument_h
+#define XMLDocument_h
 
-#include "bindings/v8/ScriptWrappable.h"
-#include "wtf/RefCounted.h"
-#include "wtf/text/WTFString.h"
+#include "core/dom/Document.h"
+#include "wtf/PassRefPtr.h"
 
 namespace WebCore {
 
-class ExecutionContext;
-
-class SpeechRecognitionAlternative : public ScriptWrappable, public RefCounted<SpeechRecognitionAlternative> {
+class XMLDocument : public Document {
 public:
-    static PassRefPtr<SpeechRecognitionAlternative> create(const String&, double);
-
-    const String& transcript() const { return m_transcript; }
-    double confidence() const { return m_confidence; }
-
-private:
-    SpeechRecognitionAlternative(const String&, double);
-
-    String m_transcript;
-    double m_confidence;
+    static PassRefPtr<XMLDocument> create(const DocumentInit& initializer = DocumentInit())
+    {
+        return adoptRef(new XMLDocument(initializer, XMLDocumentClass));
+    }
+
+    static PassRefPtr<XMLDocument> createXHTML(const DocumentInit& initializer = DocumentInit())
+    {
+        return adoptRef(new XMLDocument(initializer, XMLDocumentClass | XHTMLDocumentClass));
+    }
+
+protected:
+    XMLDocument(const DocumentInit&, DocumentClassFlags documentClasses);
 };
 
+DEFINE_DOCUMENT_TYPE_CASTS(XMLDocument);
+
 } // namespace WebCore
 
-#endif // SpeechRecognitionAlternative_h
+#endif // XMLDocument_h