1 files changed, 6 insertions, 1 deletions
diff --git a/dom/base/nsDOMTokenList.h b/dom/base/nsDOMTokenList.h
index e44e042d5..0b3f70319 100644
--- a/dom/base/nsDOMTokenList.h
+++ b/dom/base/nsDOMTokenList.h
@@ -22,7 +22,9 @@
 
 namespace mozilla {
 class ErrorResult;
-
+namespace dom {
+class DocGroup;
+} // namespace dom
 } // namespace mozilla
 
 class nsAttrValue;
@@ -35,6 +37,7 @@ class nsDOMTokenList : public nsISupports,
 {
 protected:
   typedef mozilla::dom::Element Element;
+  typedef mozilla::dom::DocGroup DocGroup;
   typedef nsWhitespaceTokenizerTemplate<nsContentUtils::IsHTMLWhitespace>
     WhitespaceTokenizer;
 
@@ -52,6 +55,8 @@ public:
     return mElement;
   }
 
+  DocGroup* GetDocGroup() const;
+
   uint32_t Length();
   void Item(uint32_t aIndex, nsAString& aResult)
   {