Delete unused AnimatableValue code

third_party/WebKit/Source/core/animation/animatable/AnimatableShapeValue.cpp

 /*
  * 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 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "core/animation/animatable/AnimatableShapeValue.h"
 
 namespace blink {
 
-bool AnimatableShapeValue::usesDefaultInterpolationWith(
-    const AnimatableValue* value) const {
-  const AnimatableShapeValue* shapeValue = toAnimatableShapeValue(value);
-
-  if (m_shape->type() != ShapeValue::Shape ||
-      shapeValue->m_shape->type() != ShapeValue::Shape ||
-      m_shape->cssBox() != shapeValue->m_shape->cssBox())
-    return true;
-
-  const BasicShape* fromShape = this->m_shape->shape();
-  const BasicShape* toShape = shapeValue->m_shape->shape();
-
-  return !fromShape->canBlend(toShape);
-}
-
-PassRefPtr<AnimatableValue> AnimatableShapeValue::interpolateTo(
-    const AnimatableValue* value,
-    double fraction) const {
-  if (usesDefaultInterpolationWith(value))
-    return defaultInterpolateTo(this, value, fraction);
-
-  const AnimatableShapeValue* shapeValue = toAnimatableShapeValue(value);
-  const BasicShape* fromShape = this->m_shape->shape();
-  const BasicShape* toShape = shapeValue->m_shape->shape();
-  return AnimatableShapeValue::create(ShapeValue::createShapeValue(
-      toShape->blend(fromShape, fraction), shapeValue->m_shape->cssBox()));
-}
-
 bool AnimatableShapeValue::equalTo(const AnimatableValue* value) const {
   const ShapeValue* shape = toAnimatableShapeValue(value)->m_shape.get();
   return m_shape == shape || (m_shape && shape && *m_shape == *shape);
 }
 
 }  // namespace blink