Remove unused includes from core/accessibility, core/css and core/dom

Source/core/css/CSSCursorImageValue.cpp

 /*
  * Copyright (C) 2006 Rob Buis <buis@kde.org>
  *           (C) 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2008 Apple Inc. 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
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 17 matching lines @@
 #include "core/dom/WebCoreMemoryInstrumentation.h"
 #include "core/loader/cache/CachedImage.h"
 #include "core/loader/cache/CachedResourceLoader.h"
 #include "core/rendering/style/StyleCachedImage.h"
 #include "core/rendering/style/StyleCachedImageSet.h"
 #include "core/rendering/style/StyleImage.h"
 #include "core/rendering/style/StylePendingImage.h"
 #include "core/svg/SVGCursorElement.h"
 #include "core/svg/SVGLengthContext.h"
 #include "core/svg/SVGURIReference.h"
-#include <wtf/MathExtras.h>
-#include <wtf/MemoryInstrumentationHashSet.h>
-#include <wtf/UnusedParam.h>
-#include <wtf/text/WTFString.h>
+#include "wtf/MathExtras.h"
+#include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
 static inline SVGCursorElement* resourceReferencedByCursorElement(const String& url, Document* document)
 {
     Element* element = SVGURIReference::targetElementFromIRIString(url, document);
     if (element && element->hasTagName(SVGNames::cursorTag))
         return static_cast<SVGCursorElement*>(element);
 
     return 0;
@@ skipping 150 matching lines @@
 
 void CSSCursorImageValue::reportDescendantMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
 {
     MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::CSS);
     m_imageValue->reportMemoryUsage(memoryObjectInfo);
     // No need to report m_image as it is counted as part of RenderArena.
     info.addMember(m_referencedElements, "referencedElements");
 }
 
 } // namespace WebCore