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

Source/core/rendering/RenderObject.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 66 matching lines @@
 #include "core/rendering/RenderTableRow.h"
 #include "core/rendering/RenderTheme.h"
 #include "core/rendering/RenderView.h"
 #include "core/rendering/style/ContentData.h"
 #include "core/rendering/style/CursorList.h"
 #include "core/rendering/svg/SVGRenderSupport.h"
 #include "wtf/RefCountedLeakCounter.h"
 #include "wtf/UnusedParam.h"
 #include "wtf/text/StringBuilder.h"
 #include <algorithm>
+#ifndef NDEBUG
 #include <stdio.h>
+#endif
 
 using namespace std;
 
 namespace WebCore {
 
 using namespace HTMLNames;
 
 #ifndef NDEBUG
 
 RenderObject::SetLayoutNeededForbiddenScope::SetLayoutNeededForbiddenScope(RenderObject* renderObject, bool isForbidden)
@@ skipping 3219 matching lines @@
 {
     if (object1) {
         const WebCore::RenderObject* root = object1;
         while (root->parent())
             root = root->parent();
         root->showRenderTreeAndMark(object1, "*", object2, "-", 0);
     }
 }
 
 #endif