nodeName for HTML elements are uppercase as well.

content/html/content/src/nsGenericHTMLElement.cpp

@@ -286,6 +286,12 @@ nsGenericHTMLElement::CopyInnerTo(nsIContent* aSrcContent,
   return result;
 }
 
+nsresult
+nsGenericHTMLElement::GetNodeName(nsString& aNodeName)
+{
+  return GetTagName(aNodeName);
+}
+
 nsresult
 nsGenericHTMLElement::GetTagName(nsString& aTagName)
 {

content/html/content/src/nsGenericHTMLElement.h

@@ -57,6 +57,9 @@ public:
                        nsGenericHTMLElement* aDest,
                        PRBool aDeep);
 
+  // Implementation for nsIDOMNode
+  nsresult    GetNodeName(nsString& aNodeName);
+
   // Implementation for nsIDOMElement
   nsresult    GetAttribute(const nsString& aName, nsString& aReturn) 
   {

layout/html/content/src/nsGenericHTMLElement.cpp

@@ -286,6 +286,12 @@ nsGenericHTMLElement::CopyInnerTo(nsIContent* aSrcContent,
   return result;
 }
 
+nsresult
+nsGenericHTMLElement::GetNodeName(nsString& aNodeName)
+{
+  return GetTagName(aNodeName);
+}
+
 nsresult
 nsGenericHTMLElement::GetTagName(nsString& aTagName)
 {

layout/html/content/src/nsGenericHTMLElement.h

@@ -57,6 +57,9 @@ public:
                        nsGenericHTMLElement* aDest,
                        PRBool aDeep);
 
+  // Implementation for nsIDOMNode
+  nsresult    GetNodeName(nsString& aNodeName);
+
   // Implementation for nsIDOMElement
   nsresult    GetAttribute(const nsString& aName, nsString& aReturn) 
   {