Revert "CSS Custom Properties (Variables)"

third_party/WebKit/Source/core/css/CSSCustomPropertyDeclaration.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 CSSCustomPropertyDeclaration_h
-#define CSSCustomPropertyDeclaration_h
-
-#include "core/css/CSSValue.h"
-#include "core/css/CSSVariableData.h"
-#include "wtf/RefPtr.h"
-#include "wtf/text/AtomicString.h"
-
-namespace blink {
-
-class CSSCustomPropertyDeclaration : public CSSValue {
-public:
-    static PassRefPtrWillBeRawPtr<CSSCustomPropertyDeclaration> create(const AtomicString& name, PassRefPtr<CSSVariableData> value)
-    {
-        return adoptRefWillBeNoop(new CSSCustomPropertyDeclaration(name, value));
-    }
-
-    static PassRefPtrWillBeRawPtr<CSSCustomPropertyDeclaration> create(const AtomicString& name, CSSValueID id)
-    {
-        return adoptRefWillBeNoop(new CSSCustomPropertyDeclaration(name, id));
-    }
-
-    const AtomicString& name() const { return m_name; }
-    CSSVariableData* value() const { return m_value.get(); }
-    CSSValueID id() const { return m_valueId; }
-
-    bool equals(const CSSCustomPropertyDeclaration& other) const { return this == &other; }
-
-    DECLARE_TRACE_AFTER_DISPATCH();
-private:
-    CSSCustomPropertyDeclaration(const AtomicString& name, CSSValueID id)
-        : CSSValue(CustomPropertyDeclarationClass)
-        , m_name(name)
-        , m_value(nullptr)
-        , m_valueId(id)
-    {
-        ASSERT(id == CSSValueInherit || id == CSSValueInitial || id == CSSValueUnset);
-    }
-
-    CSSCustomPropertyDeclaration(const AtomicString& name, PassRefPtr<CSSVariableData> value)
-        : CSSValue(CustomPropertyDeclarationClass)
-        , m_name(name)
-        , m_value(value)
-        , m_valueId(CSSValueInternalVariableValue)
-    {
-    }
-
-    const AtomicString m_name;
-    RefPtr<CSSVariableData> m_value;
-    CSSValueID m_valueId;
-};
-
-DEFINE_CSS_VALUE_TYPE_CASTS(CSSCustomPropertyDeclaration, isCustomPropertyDeclaration());
-
-} // namespace blink
-
-#endif // CSSCustomPropertyDeclaration_h