Remove unused ScrollAnimatorNone::PerAxisData constructor argument.

Source/platform/scroll/ScrollAnimatorNone.h

 /*
  * Copyright (c) 2011, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 74 matching lines @@
 
 protected:
     virtual void animationWillStart() { }
     virtual void animationDidFinish() { }
 
     Parameters parametersForScrollGranularity(ScrollGranularity) const;
 
     friend class ::ScrollAnimatorNoneTest;
 
     struct PLATFORM_EXPORT PerAxisData {
-        PerAxisData(ScrollAnimatorNone* parent, float* currentPos, int visibleLength);
+        PerAxisData(float* currentPos, int visibleLength);
         void reset();
         bool updateDataFromParameters(float step, float delta, float scrollableSize, double currentTime, Parameters*);
         bool animateScroll(double currentTime);
         void updateVisibleLength(int visibleLength);
 
         static double curveAt(Curve, double t);
         static double attackCurve(Curve, double deltaT, double curveT, double startPos, double attackPos);
         static double releaseCurve(Curve, double deltaT, double curveT, double releasePos, double desiredPos);
         static double coastCurve(Curve, double factor);
 
@@ skipping 37 matching lines @@
     PerAxisData m_horizontalData;
     PerAxisData m_verticalData;
 
     double m_startTime;
     bool m_animationActive;
 };
 
 } // namespace blink
 
 #endif // ScrollAnimatorNone_h