blink: Cleanup core class forward declarations

third_party/WebKit/Source/core/css/parser/CSSParserObserver.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
@@ skipping 13 matching lines @@
 
 #ifndef CSSParserObserver_h
 #define CSSParserObserver_h
 
 #include "core/css/CSSPropertySourceData.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 class CSSParserToken;
-class CSSParserTokenRange;
 
 // This is only for the inspector and shouldn't be used elsewhere.
 class CSSParserObserver {
   STACK_ALLOCATED();
 
  public:
   virtual void startRuleHeader(StyleRule::RuleType, unsigned offset) = 0;
   virtual void endRuleHeader(unsigned offset) = 0;
   virtual void observeSelector(unsigned startOffset, unsigned endOffset) = 0;
   virtual void startRuleBody(unsigned offset) = 0;
   virtual void endRuleBody(unsigned offset) = 0;
   virtual void observeProperty(unsigned startOffset,
                                unsigned endOffset,
                                bool isImportant,
                                bool isParsed) = 0;
   virtual void observeComment(unsigned startOffset, unsigned endOffset) = 0;
 };
 
 }  // namespace blink
 
 #endif  // CSSParserObserver_h