Remove most content from Interpolation

third_party/WebKit/Source/core/animation/LegacyStyleInterpolation.h

 // Copyright 2014 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 LegacyStyleInterpolation_h
 #define LegacyStyleInterpolation_h
 
 #include "core/CSSPropertyNames.h"
 #include "core/CoreExport.h"
 #include "core/animation/Interpolation.h"
@@ skipping 30 matching lines @@
   bool isLegacyStyleInterpolation() const final { return true; }
 
   PassRefPtr<AnimatableValue> currentValue() const {
     return toInterpolableAnimatableValue(m_cachedValue.get())->value();
   }
 
   CSSPropertyID id() const { return m_id; }
 
   PropertyHandle getProperty() const final { return PropertyHandle(id()); }
 
+  void interpolate(int iteration, double fraction) final;
+
+ protected:
+  LegacyStyleInterpolation(std::unique_ptr<InterpolableValue> start,
+                           std::unique_ptr<InterpolableValue> end,
+                           CSSPropertyID);
+
  private:
+  const std::unique_ptr<InterpolableValue> m_start;
+  const std::unique_ptr<InterpolableValue> m_end;
   CSSPropertyID m_id;
 
-  LegacyStyleInterpolation(std::unique_ptr<InterpolableValue> start,
-                           std::unique_ptr<InterpolableValue> end,
-                           CSSPropertyID id)
-      : Interpolation(std::move(start), std::move(end)), m_id(id) {}
+  mutable double m_cachedFraction;
+  mutable int m_cachedIteration;
+  mutable std::unique_ptr<InterpolableValue> m_cachedValue;
+
+  InterpolableValue* getCachedValueForTesting() const final {
+    return m_cachedValue.get();
+  }
 };
 
 DEFINE_TYPE_CASTS(LegacyStyleInterpolation,
                   Interpolation,
                   value,
                   value->isLegacyStyleInterpolation(),
                   value.isLegacyStyleInterpolation());
 
 }  // namespace blink
 
 #endif