Remove CSSInitialValue::createLegacyImplicit()

third_party/WebKit/Source/core/css/CSSInitialValue.h

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2008 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 11 matching lines @@
 #define CSSInitialValue_h
 
 #include "core/css/CSSValue.h"
 #include "wtf/PassRefPtr.h"
 
 namespace blink {
 
 class CSSInitialValue : public CSSValue {
  public:
   static CSSInitialValue* create();
-  static CSSInitialValue* createLegacyImplicit();  // crbug.com/471917
 
   String customCSSText() const;
 
-  bool isImplicit() const { return m_isImplicit; }
-
   bool equals(const CSSInitialValue&) const { return true; }
 
   DEFINE_INLINE_TRACE_AFTER_DISPATCH() {
     CSSValue::traceAfterDispatch(visitor);
   }
 
  private:
   friend class CSSValuePool;
 
-  explicit CSSInitialValue(bool implicit)
-      : CSSValue(InitialClass), m_isImplicit(implicit) {}
-
-  bool m_isImplicit;
+  CSSInitialValue() : CSSValue(InitialClass) {}
 };
 
 DEFINE_CSS_VALUE_TYPE_CASTS(CSSInitialValue, isInitialValue());
 
 }  // namespace blink
 
 #endif  // CSSInitialValue_h