Header cleanup: don't include system header stdio.h in non-debug builds

Source/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 32 matching lines @@
 #include "core/editing/VisibleUnits.h"
 #include "core/editing/markup.h"
 #include "core/html/HTMLElement.h"
 #include "core/platform/graphics/FloatQuad.h"
 #include "core/rendering/RenderBoxModelObject.h"
 #include "core/rendering/RenderText.h"
 #include "wtf/RefCountedLeakCounter.h"
 #include "wtf/Vector.h"
 #include "wtf/text/CString.h"
 #include "wtf/text/StringBuilder.h"
+#ifndef NDEBUG
 #include <stdio.h>
+#endif
 
 namespace WebCore {
 
 using namespace std;
 using namespace HTMLNames;
 
 DEFINE_DEBUG_ONLY_GLOBAL(WTF::RefCountedLeakCounter, rangeCounter, ("Range"));
 
 inline Range::Range(PassRefPtr<Document> ownerDocument)
     : m_ownerDocument(ownerDocument)
@@ skipping 1831 matching lines @@
 
 void showTree(const WebCore::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