Split out CSSPrimitiveValue's PropertyID into CSSCustomIdentValue

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

-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CSSStringValueBase_h
-#define CSSStringValueBase_h
-
-#include "core/CoreExport.h"
-#include "core/css/CSSValue.h"
-#include "wtf/PassRefPtr.h"
-#include "wtf/RefCounted.h"
-
-namespace blink {
-
-enum class StringValueClass {
-    StringClass,
-    CustomIdentClass,
-    URIClass,
-};
-
-template <StringValueClass T>
-class CSSStringValueBase : public CSSValue {
-public:
-    static PassRefPtrWillBeRawPtr<CSSStringValueBase> create(const String& str)
-    {
-        return adoptRefWillBeNoop(new CSSStringValueBase(str));
-    }
-
-    String value() const { return m_string; }
-
-    String customCSSText() const;
-
-    bool equals(const CSSStringValueBase& other) const
-    {
-        return m_string == other.m_string;
-    }
-
-    DEFINE_INLINE_TRACE_AFTER_DISPATCH()
-    {
-        CSSValue::traceAfterDispatch(visitor);
-    }
-
-private:
-    CSSStringValueBase(const String&);
-
-    String m_string;
-};
-
-using CSSStringValue = CSSStringValueBase<StringValueClass::StringClass>;
-using CSSCustomIdentValue = CSSStringValueBase<StringValueClass::CustomIdentClass>;
-using CSSURIValue = CSSStringValueBase<StringValueClass::URIClass>;
-
-DEFINE_CSS_VALUE_TYPE_CASTS(CSSStringValue, isStringValue());
-DEFINE_CSS_VALUE_TYPE_CASTS(CSSCustomIdentValue, isCustomIdentValue());
-DEFINE_CSS_VALUE_TYPE_CASTS(CSSURIValue, isURIValue());
-
-} // namespace blink
-
-#endif // CSSStringValueBase_h