Bug 407589 add empty implementation for IAccessibleTable::summary, r=aaronlev, a=mtschrep

accessible/src/atk/nsMaiInterfaceTable.cpp

@@ -343,7 +343,10 @@ getRowHeaderCB(AtkTable *aTable, gint aRow)
 AtkObject*
 getSummaryCB(AtkTable *aTable)
 {
-    /* ??? in nsIAccessibleTable, it returns a nsAString */
+    // Neither html:table nor xul:tree nor ARIA grid/tree have an ability to
+    // link an accessible object to specify a summary. There is closes method
+    // in nsIAccessibleTable::summary to get a summary as a string which is not
+    // mapped directly to ATK.
     return nsnull;
 }
 

accessible/src/msaa/CAccessibleTable.cpp

@@ -425,7 +425,12 @@ STDMETHODIMP
 CAccessibleTable::get_summary(IUnknown **aAccessible)
 {
   *aAccessible = NULL;
-  return E_NOTIMPL;
+
+  // Neither html:table nor xul:tree nor ARIA grid/tree have an ability to
+  // link an accessible object to specify a summary. There is closes method
+  // in nsIAccessibleTable::summary to get a summary as a string which is not
+  // mapped directly to IAccessible2.
+  return S_OK;
 }
 
 STDMETHODIMP