Remove some unused functions in core

Source/core/dom/DocumentMarker.h

 /*
  * This file is part of the DOM implementation for WebCore.
  *
  * Copyright (C) 2006 Apple Computer, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 74 matching lines @@
     };
 
     class SpellCheckClientMarkers : public MarkerTypes {
     public:
         SpellCheckClientMarkers()
             : MarkerTypes(Spelling | Grammar | InvisibleSpellcheck)
         {
         }
     };
 
-    DocumentMarker();
     DocumentMarker(MarkerType, unsigned startOffset, unsigned endOffset, const String& description, uint32_t hash);
     DocumentMarker(unsigned startOffset, unsigned endOffset, bool activeMatch);
-    DocumentMarker(MarkerType, unsigned startOffset, unsigned endOffset, PassRefPtrWillBeRawPtr<DocumentMarkerDetails>);
     DocumentMarker(const DocumentMarker&);
 
     MarkerType type() const { return m_type; }
     unsigned startOffset() const { return m_startOffset; }
     unsigned endOffset() const { return m_endOffset; }
     uint32_t hash() const { return m_hash; }
 
     const String& description() const;
     bool activeMatch() const;
     DocumentMarkerDetails* details() const;
@@ skipping 41 matching lines @@
     virtual ~DocumentMarkerDetails();
     virtual bool isDescription() const { return false; }
     virtual bool isTextMatch() const { return false; }
 
     virtual void trace(Visitor*) { }
 };
 
 } // namespace blink
 
 #endif // DocumentMarker_h