Evacuate ComputedStyle references from the CSS*Value hierarchy

third_party/WebKit/Source/core/css/CSSValuePool.cpp

 /*
  * Copyright (C) 2011, 2012 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
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  * 2. Redistributions in binary form must reproduce the above copyright
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  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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 #include "core/css/CSSValuePool.h"
 
-#include "core/css/CSSValueList.h"
-#include "core/css/parser/CSSParser.h"
-#include "core/style/ComputedStyle.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Threading.h"
 
 namespace blink {
 
 CSSValuePool& cssValuePool()
 {
     DEFINE_THREAD_SAFE_STATIC_LOCAL(ThreadSpecific<Persistent<CSSValuePool>>, threadSpecificPool, new ThreadSpecific<Persistent<CSSValuePool>>());
     Persistent<CSSValuePool>& poolHandle = *threadSpecificPool;
     if (!poolHandle) {
@@ skipping 30 matching lines @@
     visitor->trace(m_identifierValueCache);
     visitor->trace(m_pixelValueCache);
     visitor->trace(m_percentValueCache);
     visitor->trace(m_numberValueCache);
     visitor->trace(m_colorValueCache);
     visitor->trace(m_fontFaceValueCache);
     visitor->trace(m_fontFamilyValueCache);
 }
 
 } // namespace blink