Table headers are not retrieved properly by Accessibility API

Source/modules/accessibility/AXTableColumn.h

Index: Source/modules/accessibility/AXTableColumn.h
diff --git a/Source/modules/accessibility/AXTableColumn.h b/Source/modules/accessibility/AXTableColumn.h
index 5e8702aea5011c90a8240632553c1adce208f47b..5b69635d6ac1960f3d692fc5d9dfd81981b62bf1 100644
--- a/Source/modules/accessibility/AXTableColumn.h
+++ b/Source/modules/accessibility/AXTableColumn.h
@@ -46,7 +46,10 @@ public:
     static PassRefPtr<AXTableColumn> create(AXObjectCacheImpl*);
     virtual ~AXTableColumn();
 
+    // retrieves the topmost "column" header (th)
     AXObject* headerObject();
+    // retrieves the "column" headers (th, scope) from top to bottom for the each column.

[dmazzoni, 2015/01/21 07:12:30]

nit: "for the each column" is confusing and can be deleted - since this is a
table column object it's obvious it applies to the column

+    void headerObjectsForColumn(AccessibilityChildrenVector&);
 
     virtual AccessibilityRole roleValue() const override { return ColumnRole; }