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diff --git a/Source/WebCore/svg/SVGAnimateElementBase.h b/Source/WebCore/svg/SVGAnimateElementBase.h
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+++ b/Source/WebCore/svg/SVGAnimateElementBase.h
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+/*
+ * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org>
+ * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
+ * Copyright (C) 2008 Apple Inc. All rights reserved.
+ * Copyright (C) Research In Motion Limited 2011. All rights reserved.
+ * Copyright (C) 2014 Adobe Systems Incorporated. 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,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#pragma once
+
+#include "SVGAnimatedType.h"
+#include "SVGAnimatedTypeAnimator.h"
+#include "SVGAnimationElement.h"
+#include "SVGNames.h"
+
+namespace WebCore {
+
+class SVGAnimateElementBase : public SVGAnimationElement {
+public:
+    virtual ~SVGAnimateElementBase();
+
+    AnimatedPropertyType determineAnimatedPropertyType(SVGElement&) const;
+
+protected:
+    SVGAnimateElementBase(const QualifiedName&, Document&);
+
+    void resetAnimatedType() override;
+    void clearAnimatedType(SVGElement* targetElement) override;
+
+    bool calculateToAtEndOfDurationValue(const String& toAtEndOfDurationString) override;
+    bool calculateFromAndToValues(const String& fromString, const String& toString) override;
+    bool calculateFromAndByValues(const String& fromString, const String& byString) override;
+    void calculateAnimatedValue(float percentage, unsigned repeatCount, SVGSMILElement* resultElement) override;
+    void applyResultsToTarget() override;
+    float calculateDistance(const String& fromString, const String& toString) override;
+    bool isAdditive() const override;
+
+    void setTargetElement(SVGElement*) override;
+    void setAttributeName(const QualifiedName&) override;
+    void resetAnimatedPropertyType() override;
+
+    AnimatedPropertyType m_animatedPropertyType;
+
+private:
+    SVGAnimatedTypeAnimator* ensureAnimator();
+    bool animatedPropertyTypeSupportsAddition() const;
+
+    bool hasValidAttributeType() override;
+
+    std::unique_ptr<SVGAnimatedType> m_fromType;
+    std::unique_ptr<SVGAnimatedType> m_toType;
+    std::unique_ptr<SVGAnimatedType> m_toAtEndOfDurationType;
+    std::unique_ptr<SVGAnimatedType> m_animatedType;
+
+    SVGElementAnimatedPropertyList m_animatedProperties;
+    std::unique_ptr<SVGAnimatedTypeAnimator> m_animator;
+};
+
+} // namespace WebCore
+
+SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::SVGAnimateElementBase)
+    static bool isType(const WebCore::SVGElement& element)
+    {
+        return element.hasTagName(WebCore::SVGNames::animateTag) || element.hasTagName(WebCore::SVGNames::animateColorTag)
+            || element.hasTagName(WebCore::SVGNames::animateTransformTag) || element.hasTagName(WebCore::SVGNames::setTag);
+    }
+    static bool isType(const WebCore::Node& node) { return is<WebCore::SVGElement>(node) && isType(downcast<WebCore::SVGElement>(node)); }
+SPECIALIZE_TYPE_TRAITS_END()