AX: remove unused AXObject::selectedText.

Source/core/accessibility/AXRenderObject.h

 /*
  * Copyright (C) 2008 Apple 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 163 matching lines @@
 
     // DOM and Render tree access.
     virtual Node* node() const OVERRIDE;
     virtual Document* document() const OVERRIDE;
     virtual FrameView* documentFrameView() const OVERRIDE;
     virtual Element* anchorElement() const OVERRIDE;
     virtual Widget* widgetForAttachmentView() const OVERRIDE;
 
     // Selected text.
     virtual PlainTextRange selectedTextRange() const OVERRIDE;
-    virtual String selectedText() const OVERRIDE;
 
     // Modify or take an action on an object.
     virtual void setSelectedTextRange(const PlainTextRange&) OVERRIDE;
     virtual void setValue(const String&) OVERRIDE;
     virtual void scrollTo(const IntPoint&) const OVERRIDE;
 
     // Notifications that this object may have changed.
     virtual void handleActiveDescendantChanged() OVERRIDE;
     virtual void handleAriaExpandedChanged() OVERRIDE;
     virtual void textChanged() OVERRIDE;
@@ skipping 25 matching lines @@
     void addCanvasChildren();
     void addAttachmentChildren();
     void addRemoteSVGChildren();
     void addInlineTextBoxChildren();
 
     void ariaSelectedRows(AccessibilityChildrenVector&);
     bool elementAttributeValue(const QualifiedName&) const;
     bool inheritsPresentationalRole() const;
     LayoutRect computeElementRect() const;
     VisibleSelection selection() const;
-    String stringForRange(const PlainTextRange&) const;
     int indexForVisiblePosition(const VisiblePosition&) const;
 };
 
 DEFINE_AX_OBJECT_TYPE_CASTS(AXRenderObject, isAXRenderObject());
 
 } // namespace WebCore
 
 #endif // AXRenderObject_h