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

Source/core/css/RuleFeature.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
@@ skipping 13 matching lines @@
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "config.h"
 #include "core/css/RuleFeature.h"
 
 #include "core/css/CSSSelector.h"
 #include "core/dom/WebCoreMemoryInstrumentation.h"
-#include <wtf/MemoryInstrumentationHashMap.h>
-#include <wtf/MemoryInstrumentationHashSet.h>
-#include <wtf/MemoryInstrumentationVector.h>
+#include "wtf/MemoryInstrumentationVector.h"
 
 namespace WebCore {
 
 void RuleFeatureSet::collectFeaturesFromSelector(const CSSSelector* selector)
 {
     if (selector->m_match == CSSSelector::Id)
         idsInRules.add(selector->value().impl());
     else if (selector->m_match == CSSSelector::Class)
         classesInRules.add(selector->value().impl());
     else if (selector->isAttributeSelector())
@@ skipping 43 matching lines @@
 {
     MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::CSS);
     info.addMember(idsInRules, "idsInRules");
     info.addMember(classesInRules, "classesInRules");
     info.addMember(attrsInRules, "attrsInRules");
     info.addMember(siblingRules, "siblingRules");
     info.addMember(uncommonAttributeRules, "uncommonAttributeRules");
 }
 
 } // namespace WebCore