Bug 1190172 part 4 - Remove unused nsHTMLEditor::HasAttr; r=ehsan

editor/libeditor/nsHTMLEditor.h

@@ -678,7 +678,6 @@ protected:
                                     const nsAString* aAttribute);
 
   bool NodeIsProperty(nsIDOMNode *aNode);
-  bool HasAttr(nsIDOMNode *aNode, const nsAString *aAttribute);
   bool IsAtFrontOfNode(nsIDOMNode *aNode, int32_t aOffset);
   bool IsAtEndOfNode(nsIDOMNode *aNode, int32_t aOffset);
   bool IsOnlyAttribute(const nsIContent* aElement, const nsAString& aAttribute);

editor/libeditor/nsHTMLEditorStyle.cpp

@@ -848,26 +848,6 @@ nsHTMLEditor::IsOnlyAttribute(const nsIContent* aContent,
   return true;
 }
 
-bool nsHTMLEditor::HasAttr(nsIDOMNode* aNode,
-                           const nsAString* aAttribute)
-{
-  NS_ENSURE_TRUE(aNode, false);
-  if (!aAttribute || aAttribute->IsEmpty()) {
-    // everybody has the 'null' attribute
-    return true;
-  }
-
-  // get element
-  nsCOMPtr<dom::Element> element = do_QueryInterface(aNode);
-  NS_ENSURE_TRUE(element, false);
-
-  nsCOMPtr<nsIAtom> atom = NS_Atomize(*aAttribute);
-  NS_ENSURE_TRUE(atom, false);
-
-  return element->HasAttr(kNameSpaceID_None, atom);
-}
-
-
 nsresult
 nsHTMLEditor::PromoteRangeIfStartsOrEndsInNamedAnchor(nsRange* inRange)
 {