Summary tag is exposed with wrong IA2 Role

Source/core/accessibility/AXRenderObject.cpp

Index: Source/core/accessibility/AXRenderObject.cpp
diff --git a/Source/core/accessibility/AXRenderObject.cpp b/Source/core/accessibility/AXRenderObject.cpp
index 8ee9d6547dc7c27e12223599572869565d9e5858..872cd1eb066051384e7aa4c3dfb2691253f5a435 100644
--- a/Source/core/accessibility/AXRenderObject.cpp
+++ b/Source/core/accessibility/AXRenderObject.cpp
@@ -280,6 +280,11 @@ AccessibilityRole AXRenderObject::determineAccessibilityRole()
         return buttonRoleType();
     if (isHTMLDetailsElement(node))
         return DetailsRole;
+    if (isHTMLSummaryElement(node)) {
+        if (node->parentElement() && isHTMLDetailsElement(node->parentElement()))
+            return DisclosureTriangleRole;
+        return UnknownRole;
+    }
     if (isHTMLLegendElement(node))
         return LegendRole;
     if (m_renderer->isText())