Remove dead markup serialization code.

sky/engine/core/dom/Range.cpp

 /*
  * (C) 1999 Lars Knoll (knoll@kde.org)
  * (C) 2000 Gunnstein Lye (gunnstein@netcom.no)
  * (C) 2000 Frederik Holljen (frederik.holljen@hig.no)
  * (C) 2001 Peter Kelly (pmk@post.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Motorola Mobility. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 16 matching lines @@
 
 #include "sky/engine/bindings/core/v8/ExceptionState.h"
 #include "sky/engine/core/dom/ClientRect.h"
 #include "sky/engine/core/dom/ClientRectList.h"
 #include "sky/engine/core/dom/DocumentFragment.h"
 #include "sky/engine/core/dom/ExceptionCode.h"
 #include "sky/engine/core/dom/Node.h"
 #include "sky/engine/core/dom/NodeTraversal.h"
 #include "sky/engine/core/dom/NodeWithIndex.h"
 #include "sky/engine/core/dom/Text.h"
-#include "sky/engine/core/editing/markup.h"
 #include "sky/engine/core/editing/TextIterator.h"
 #include "sky/engine/core/editing/VisiblePosition.h"
 #include "sky/engine/core/editing/VisibleUnits.h"
 #include "sky/engine/core/events/ScopedEventQueue.h"
 #include "sky/engine/core/html/HTMLElement.h"
 #include "sky/engine/core/rendering/RenderBoxModelObject.h"
 #include "sky/engine/core/rendering/RenderText.h"
 #include "sky/engine/platform/geometry/FloatQuad.h"
 #include "sky/engine/wtf/RefCountedLeakCounter.h"
 #include "sky/engine/wtf/text/CString.h"
@@ skipping 853 matching lines @@
             int length = data.length();
             int start = (n == m_start.container()) ? std::min(std::max(0, m_start.offset()), length) : 0;
             int end = (n == m_end.container()) ? std::min(std::max(start, m_end.offset()), length) : length;
             builder.append(data, start, end - start);
         }
     }
 
     return builder.toString();
 }
 
-String Range::toHTML() const
-{
-    return createMarkup(this);
-}
-
 String Range::text() const
 {
     return plainText(this, TextIteratorEmitsObjectReplacementCharacter);
 }
 
 void Range::detach()
 {
     // This is now a no-op as per the DOM specification.
 }
 
@@ skipping 594 matching lines @@
 
 void showTree(const blink::Range* range)
 {
     if (range && range->boundaryPointsValid()) {
         range->startContainer()->showTreeAndMark(range->startContainer(), "S", range->endContainer(), "E");
         fprintf(stderr, "start offset: %d, end offset: %d\n", range->startOffset(), range->endOffset());
     }
 }
 
 #endif