Table headers are not retrieved properly by Accessibility API

Source/modules/accessibility/AXTableRow.h

Index: Source/modules/accessibility/AXTableRow.h
diff --git a/Source/modules/accessibility/AXTableRow.h b/Source/modules/accessibility/AXTableRow.h
index f91ab398a81c32d4e73aed7c2c282b152a0059d9..bfdab550d441cdbbd5de4e5483b3e7f906d3cbcd 100644
--- a/Source/modules/accessibility/AXTableRow.h
+++ b/Source/modules/accessibility/AXTableRow.h
@@ -48,6 +48,8 @@ public:
 
     // retrieves the "row" header (a th tag in the rightmost column)
     virtual AXObject* headerObject();
+    // retrieves the "row" headers (th, scope) from left to right for the each row.
+    void headerObjectsForRow(AccessibilityChildrenVector&);
     AXObject* parentTable() const;
 
     void setRowIndex(int rowIndex) { m_rowIndex = rowIndex; }