Removing a bunch of unused platform code.

Source/WebCore/rendering/RenderTreeAsText.cpp

 /*
  * Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved.
  *
  * 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 51 matching lines @@
 #include "RenderSVGPath.h"
 #include "RenderSVGRoot.h"
 #include "RenderSVGText.h"
 #include "SVGRenderTreeAsText.h"
 #endif
 
 #if USE(ACCELERATED_COMPOSITING)
 #include "RenderLayerBacking.h"
 #endif
 
-#if PLATFORM(QT)
-#include <QVariant>
-#endif
-
 namespace WebCore {
 
 using namespace HTMLNames;
 
 static void writeLayers(TextStream&, const RenderLayer* rootLayer, RenderLayer*, const LayoutRect& paintDirtyRect, int indent = 0, RenderAsTextBehavior = RenderAsTextBehaviorNormal);
 
 TextStream& operator<<(TextStream& ts, const IntRect& r)
 {
     return ts << "at (" << r.x() << "," << r.y() << ") size " << r.width() << "x" << r.height();
 }
@@ skipping 812 matching lines @@
     element->document()->updateLayout();
 
     RenderObject* renderer = element->renderer();
     if (!renderer || !renderer->isListItem())
         return String();
 
     return toRenderListItem(renderer)->markerText();
 }
 
 } // namespace WebCore