Remove some unused includes from core/css and core/dom

Source/core/css/ElementRuleCollector.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, 2013 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 11 matching lines @@
  *
  * You should have received a copy of the GNU Library General Public License
  * 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/ElementRuleCollector.h"
 
-#include "CSSValueKeywords.h"
-#include "core/css/CSSDefaultStyleSheets.h"
-#include "core/css/CSSRule.h"
 #include "core/css/CSSRuleList.h"
 #include "core/css/CSSSelector.h"
-#include "core/css/CSSSelectorList.h"
 #include "core/css/SelectorCheckerFastPath.h"
 #include "core/css/SiblingTraversalStrategies.h"
 #include "core/css/StylePropertySet.h"
 #include "core/dom/StyledElement.h"
-#include "core/html/HTMLElement.h"
 #include "core/rendering/RenderRegion.h"
-#include "core/svg/SVGElement.h"
 
 #include <wtf/TemporaryChange.h>
 
 namespace WebCore {
 
 StyleResolver::MatchResult& ElementRuleCollector::matchedResult()
 {
     return m_result;
 }
 
@@ skipping 236 matching lines @@
     // information about "scope".
     m_behaviorAtBoundary = SelectorChecker::StaysWithinTreeScope;
     int firstRuleIndex = -1, lastRuleIndex = -1;
     StyleResolver::RuleRange ruleRange(firstRuleIndex, lastRuleIndex);
     collectMatchingRules(MatchRequest(ruleSet), ruleRange);
 
     return m_matchedRules && !m_matchedRules->isEmpty();
 }
 
 } // namespace WebCore