Refactor SMIL animation value updates

third_party/WebKit/Source/core/svg/SVGAnimatedTypeAnimator.h

 /*
  * Copyright (C) Research In Motion Limited 2011-2012. All rights reserved.
  * Copyright (C) 2013 Samsung Electronics. 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.
  */
 
 #ifndef SVGAnimatedTypeAnimator_h
 #define SVGAnimatedTypeAnimator_h
 
 #include "core/svg/properties/SVGPropertyInfo.h"
 #include "platform/heap/Handle.h"
-#include "wtf/RefPtr.h"
-#include "wtf/Vector.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class SVGAnimatedPropertyBase;
 class SVGPropertyBase;
 class SVGElement;
 class SVGAnimationElement;
 
-// The size of SVGElementInstances is 1 unless there is a <use> instance of the element.
-using SVGElementInstances = HeapVector<Member<SVGElement>, 1u>;
-
 class SVGAnimatedTypeAnimator final {
     DISALLOW_NEW();
 public:
     SVGAnimatedTypeAnimator(SVGAnimationElement*);
 
     void clear();
     void reset(SVGElement* contextElement);
 
     SVGPropertyBase* constructFromString(const String&);
 
-    SVGPropertyBase* startAnimValAnimation(const SVGElementInstances&);
-    void stopAnimValAnimation(const SVGElementInstances&);
-    SVGPropertyBase* resetAnimValToBaseVal(const SVGElementInstances&);
+    SVGPropertyBase* startAnimValAnimation();
+    void stopAnimValAnimation();
+    SVGPropertyBase* resetAnimValToBaseVal();
 
     void calculateAnimatedValue(float percentage, unsigned repeatCount, SVGPropertyBase*, SVGPropertyBase*, SVGPropertyBase*, SVGPropertyBase*);
     float calculateDistance(const String& fromString, const String& toString);
 
     void calculateFromAndToValues(Member<SVGPropertyBase>& from, Member<SVGPropertyBase>& to, const String& fromString, const String& toString);
     void calculateFromAndByValues(Member<SVGPropertyBase>& from, Member<SVGPropertyBase>& to, const String& fromString, const String& byString);
 
     void setContextElement(SVGElement* contextElement) { m_contextElement = contextElement; }
     AnimatedPropertyType type() const { return m_type; }
 
     bool isAnimatingSVGDom() const { return m_animatedProperty; }
     bool isAnimatingCSSProperty() const { return !m_animatedProperty; }
 
     DECLARE_TRACE();
 
 private:
     friend class ParsePropertyFromString;
     SVGPropertyBase* createPropertyForAnimation(const String&);
-    SVGPropertyBase* resetAnimation(const SVGElementInstances&);
+    SVGPropertyBase* resetAnimation();
 
     Member<SVGAnimationElement> m_animationElement;
     Member<SVGElement> m_contextElement;
     Member<SVGAnimatedPropertyBase> m_animatedProperty;
     AnimatedPropertyType m_type;
 };
 
 } // namespace blink
 
 #endif // SVGAnimatedTypeAnimator_h