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

Source/core/css/CSSParser.h

 /*
  * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 - 2010  Torch Mobile (Beijing) Co. Ltd. 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 18 matching lines @@
 #include "core/css/CSSFilterValue.h"
 #include "core/css/CSSGradientValue.h"
 #include "core/css/CSSParserMode.h"
 #include "core/css/CSSParserValues.h"
 #include "core/css/CSSProperty.h"
 #include "core/css/CSSPropertySourceData.h"
 #include "core/css/CSSSelector.h"
 #include "core/css/MediaQuery.h"
 #include "core/page/UseCounter.h"
 #include "core/platform/graphics/Color.h"
-#include "wtf/HashMap.h"
 #include "wtf/HashSet.h"
 #include "wtf/OwnArrayPtr.h"
 #include "wtf/Vector.h"
 #include "wtf/text/AtomicString.h"
 
 namespace WebCore {
 
 class AnimationParseContext;
 class CSSArrayFunctionValue;
 class CSSBorderImageSliceValue;
@@ skipping 687 matching lines @@
 }
 
 inline int cssyylex(void* yylval, CSSParser* parser)
 {
     return parser->lex(yylval);
 }
 
 } // namespace WebCore
 
 #endif // CSSParser_h