blink: Cleanup core class forward declarations

third_party/WebKit/Source/core/css/resolver/StyleResolver.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 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 31 matching lines @@
 #include "wtf/ListHashSet.h"
 #include "wtf/RefPtr.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 class AnimatableValue;
 class CSSRuleList;
 class CSSStyleSheet;
 class CSSValue;
-class ContainerNode;
 class Document;
 class Element;
 class Interpolation;
 class MatchResult;
 class MediaQueryEvaluator;
-class ScopedStyleResolver;
 class StylePropertySet;
 class StyleRule;
 
 enum StyleSharingBehavior {
   AllowStyleSharing,
   DisallowStyleSharing,
 };
 
 enum RuleMatchingBehavior { MatchAllRules, MatchAllRulesExcludingSMIL };
 
@@ skipping 195 matching lines @@
   bool m_printMediaType;
 
   unsigned m_styleSharingDepth;
   HeapVector<Member<StyleSharingList>, styleSharingMaxDepth>
       m_styleSharingLists;
 };
 
 }  // namespace blink
 
 #endif  // StyleResolver_h