Summary tag is exposed with wrong IA2 Role

Source/core/accessibility/AXNodeObject.cpp

Index: Source/core/accessibility/AXNodeObject.cpp
diff --git a/Source/core/accessibility/AXNodeObject.cpp b/Source/core/accessibility/AXNodeObject.cpp
index f560903f6e4259d094c51aeb59bf44cfd9f128b8..34c1230cd4d494dc4864058f43f7edffccbb22fe 100644
--- a/Source/core/accessibility/AXNodeObject.cpp
+++ b/Source/core/accessibility/AXNodeObject.cpp
@@ -193,6 +193,12 @@ AccessibilityRole AXNodeObject::determineAccessibilityRole()
         return buttonRoleType();
     if (isHTMLDetailsElement(*node()))
         return DetailsRole;
+    if (isHTMLSummaryElement(*node())) {
+        if (node()->parentNode() && isHTMLDetailsElement(node()->parentNode()))
+            return DisclosureTriangleRole;
+        return UnknownRole;
+    }
+
     if (isHTMLInputElement(*node())) {
         HTMLInputElement& input = toHTMLInputElement(*node());
         const AtomicString& type = input.type();