Provides an API to cope with table headers in Accessibility

public/web/WebAXObject.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 176 matching lines @@
     BLINK_EXPORT void setSelectedTextRange(int selectionStart, int selectionEnd) const;
     BLINK_EXPORT void setValue(WebString) const;
 
     // For a table
     BLINK_EXPORT unsigned columnCount() const;
     BLINK_EXPORT unsigned rowCount() const;
     BLINK_EXPORT WebAXObject cellForColumnAndRow(unsigned column, unsigned row) const;
     BLINK_EXPORT WebAXObject headerContainerObject() const;
     BLINK_EXPORT WebAXObject rowAtIndex(unsigned rowIndex) const;
     BLINK_EXPORT WebAXObject columnAtIndex(unsigned columnIndex) const;
+    BLINK_EXPORT void rowHeaders(WebVector<WebAXObject>&) const;
+    BLINK_EXPORT void columnHeaders(WebVector<WebAXObject>&) const;
 
     // For a table row
     BLINK_EXPORT unsigned rowIndex() const;
     BLINK_EXPORT WebAXObject rowHeader() const;
 
     // For a table column
     BLINK_EXPORT unsigned columnIndex() const;
     BLINK_EXPORT WebAXObject columnHeader() const;
 
     // For a table cell
@@ skipping 24 matching lines @@
     operator WTF::PassRefPtr<AXObject>() const;
 #endif
 
 private:
     WebPrivatePtr<AXObject> m_private;
 };
 
 } // namespace blink
 
 #endif