Bug 560228 - assertion 'No docshell tree item for mDOMNode' when nsIAccessNode::rootDocument is called on application accessible, r=davidb

accessible/src/base/nsApplicationAccessible.cpp

@@ -58,6 +58,18 @@ nsApplicationAccessible::nsApplicationAccessible() :
 NS_IMPL_ISUPPORTS_INHERITED1(nsApplicationAccessible, nsAccessible,
                              nsIAccessibleApplication)
 
+////////////////////////////////////////////////////////////////////////////////
+// nsIAccessNode
+
+NS_IMETHODIMP
+nsApplicationAccessible::GetRootDocument(nsIAccessibleDocument **aRootDocument)
+{
+  NS_ENSURE_ARG_POINTER(aRootDocument);
+  *aRootDocument = nsnull;
+
+  return NS_OK;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // nsIAccessible
 

accessible/src/base/nsApplicationAccessible.h

@@ -68,6 +68,9 @@ public:
   // nsISupports
   NS_DECL_ISUPPORTS_INHERITED
 
+  // nsIAccessNode
+  NS_IMETHOD GetRootDocument(nsIAccessibleDocument **aRootDocument);
+
   // nsIAccessible
   NS_IMETHOD GetName(nsAString& aName);
   NS_IMETHOD GetDescription(nsAString& aValue);