Revert "CSS Custom Properties (Variables)"

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

Index: third_party/WebKit/Source/core/css/CSSVariableReferenceValue.h
diff --git a/third_party/WebKit/Source/core/css/CSSVariableReferenceValue.h b/third_party/WebKit/Source/core/css/CSSVariableReferenceValue.h
deleted file mode 100644
index 187c8fb38e5b06ebc08f2e9af38aa13fc00aef54..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/core/css/CSSVariableReferenceValue.h
+++ /dev/null
@@ -1,44 +0,0 @@
-// 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 CSSVariableReferenceValue_h
-#define CSSVariableReferenceValue_h
-
-#include "core/css/CSSValue.h"
-#include "core/css/CSSVariableData.h"
-#include "wtf/RefPtr.h"
-
-namespace blink {
-
-class CSSVariableReferenceValue : public CSSValue {
-public:
-    static PassRefPtrWillBeRawPtr<CSSVariableReferenceValue> create(PassRefPtr<CSSVariableData> data)
-    {
-        return adoptRefWillBeNoop(new CSSVariableReferenceValue(data));
-    }
-
-    CSSVariableData* variableDataValue() const
-    {
-        return m_data.get();
-    }
-
-    bool equals(const CSSVariableReferenceValue& other) const { return m_data == other.m_data; }
-    String customCSSText() const;
-
-    DECLARE_TRACE_AFTER_DISPATCH();
-private:
-    CSSVariableReferenceValue(PassRefPtr<CSSVariableData> data)
-        : CSSValue(VariableReferenceClass)
-        , m_data(data)
-    {
-    }
-
-    RefPtr<CSSVariableData> m_data;
-};
-
-DEFINE_CSS_VALUE_TYPE_CASTS(CSSVariableReferenceValue, isVariableReferenceValue());
-
-} // namespace blink
-
-#endif // CSSVariableReferenceValue_h