Delete unused AnimatableValue code

third_party/WebKit/Source/core/animation/animatable/AnimatableLength.h

 /*
  * Copyright (C) 2013 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 26 matching lines @@
 
 namespace blink {
 
 class CORE_EXPORT AnimatableLength final : public AnimatableValue {
  public:
   static PassRefPtr<AnimatableLength> create(const Length& length, float zoom) {
     return adoptRef(new AnimatableLength(length, zoom));
   }
   Length getLength(float zoom, ValueRange) const;
 
-  bool hasSameUnits(const AnimatableLength* other) const {
-    return m_hasPixels == other->m_hasPixels &&
-           m_hasPercent == other->m_hasPercent;
-  }
-
- protected:
-  PassRefPtr<AnimatableValue> interpolateTo(const AnimatableValue*,
-                                            double fraction) const override;
-
  private:
-  static PassRefPtr<AnimatableLength> create(double pixels,
-                                             double percent,
-                                             bool hasPixels,
-                                             bool hasPercent) {
-    return adoptRef(
-        new AnimatableLength(pixels, percent, hasPixels, hasPercent));
-  }
   AnimatableLength(const Length&, float zoom);
-  AnimatableLength(double pixels,
-                   double percent,
-                   bool hasPixels,
-                   bool hasPercent)
-      : m_pixels(pixels),
-        m_percent(percent),
-        m_hasPixels(hasPixels),
-        m_hasPercent(hasPercent) {
-    DCHECK(m_hasPixels || m_hasPercent);
-  }
   AnimatableType type() const override { return TypeLength; }
   bool equalTo(const AnimatableValue*) const override;
 
   double m_pixels;
   double m_percent;
   bool m_hasPixels;
   bool m_hasPercent;
 };
 
 DEFINE_ANIMATABLE_VALUE_TYPE_CASTS(AnimatableLength, isLength());
 
 }  // namespace blink
 
 #endif  // AnimatableLength_h