AX: remove unused AXObject::selectedText.

Source/core/accessibility/AXObject.h

 /*
  * Copyright (C) 2008, 2009, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nuanti Ltd.
  *
  * 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.
@@ skipping 496 matching lines @@
     virtual FrameView* documentFrameView() const;
     virtual Element* anchorElement() const { return 0; }
     virtual Element* actionElement() const { return 0; }
     virtual Widget* widgetForAttachmentView() const { return 0; }
     String language() const;
     bool hasAttribute(const QualifiedName&) const;
     const AtomicString& getAttribute(const QualifiedName&) const;
 
     // Selected text.
     virtual PlainTextRange selectedTextRange() const { return PlainTextRange(); }
-    virtual String selectedText() const { return String(); }
 
     // Modify or take an action on an object.
     virtual void increment() { }
     virtual void decrement() { }
     bool performDefaultAction() const { return press(); }
     virtual bool press() const;
     // Make this object visible by scrolling as many nested scrollable views as needed.
     void scrollToMakeVisible() const;
     // Same, but if the whole object can't be made visible, try for this subrect, in local coordinates.
     void scrollToMakeVisibleWithSubFocus(const IntRect&) const;
@@ skipping 48 matching lines @@
 
     bool m_detached;
 };
 
 #define DEFINE_AX_OBJECT_TYPE_CASTS(thisType, predicate) \
     DEFINE_TYPE_CASTS(thisType, AXObject, object, object->predicate, object.predicate)
 
 } // namespace WebCore
 
 #endif // AXObject_h