4 files changed, 19 insertions, 0 deletions
diff --git a/dom/html/HTMLOptionsCollection.cpp b/dom/html/HTMLOptionsCollection.cpp
index 67de97fc4..da8a9d571 100644
--- a/dom/html/HTMLOptionsCollection.cpp
+++ b/dom/html/HTMLOptionsCollection.cpp
@@ -239,6 +239,12 @@ HTMLOptionsCollection::GetParentObject()
   return mSelect;
 }
 
+DocGroup*
+HTMLOptionsCollection::GetDocGroup() const
+{
+  return mSelect ? mSelect->GetDocGroup() : nullptr;
+}
+
 NS_IMETHODIMP
 HTMLOptionsCollection::NamedItem(const nsAString& aName,
                                  nsIDOMNode** aReturn)
diff --git a/dom/html/HTMLOptionsCollection.h b/dom/html/HTMLOptionsCollection.h
index 496919555..9dd1561f6 100644
--- a/dom/html/HTMLOptionsCollection.h
+++ b/dom/html/HTMLOptionsCollection.h
@@ -23,6 +23,7 @@ class nsIDOMHTMLOptionElement;
 namespace mozilla {
 namespace dom {
 
+class DocGroup;
 class HTMLElementOrLong;
 class HTMLOptionElementOrHTMLOptGroupElement;
 class HTMLSelectElement;
@@ -62,6 +63,7 @@ public:
 
   virtual Element* GetElementAt(uint32_t aIndex) override;
   virtual nsINode* GetParentObject() override;
+  DocGroup* GetDocGroup() const;
 
   NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(HTMLOptionsCollection,
                                                          nsIHTMLCollection)
diff --git a/dom/html/nsDOMStringMap.cpp b/dom/html/nsDOMStringMap.cpp
index 6d2bc424d..7e2ed0ece 100644
--- a/dom/html/nsDOMStringMap.cpp
+++ b/dom/html/nsDOMStringMap.cpp
@@ -62,6 +62,12 @@ nsDOMStringMap::~nsDOMStringMap()
   }
 }
 
+DocGroup*
+nsDOMStringMap::GetDocGroup() const
+{
+  return mElement ? mElement->GetDocGroup() : nullptr;
+}
+
 /* virtual */
 JSObject*
 nsDOMStringMap::WrapObject(JSContext *cx, JS::Handle<JSObject*> aGivenProto)
diff --git a/dom/html/nsDOMStringMap.h b/dom/html/nsDOMStringMap.h
index bf28957f7..6506f1464 100644
--- a/dom/html/nsDOMStringMap.h
+++ b/dom/html/nsDOMStringMap.h
@@ -16,6 +16,9 @@
 
 namespace mozilla {
 class ErrorResult;
+namespace dom {
+class DocGroup;
+} // namespace dom
 } // namespace mozilla
 
 class nsDOMStringMap : public nsStubMutationObserver,
@@ -32,6 +35,8 @@ public:
     return mElement;
   }
 
+  mozilla::dom::DocGroup* GetDocGroup() const;
+
   explicit nsDOMStringMap(mozilla::dom::Element* aElement);
 
   // WebIDL API