Delete unused AnimatableValue code

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

 // Copyright 2015 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.
 
 #include "core/animation/animatable/AnimatablePath.h"
 
 #include "core/style/DataEquivalency.h"
-#include "core/svg/SVGPathBlender.h"
-#include "core/svg/SVGPathByteStreamBuilder.h"
-#include "core/svg/SVGPathByteStreamSource.h"
-#include <memory>
 
 namespace blink {
 
-bool AnimatablePath::usesDefaultInterpolationWith(
-    const AnimatableValue* value) const {
-  // Default interpolation is used if the paths have different lengths,
-  // or the paths have a segment with different types (ignoring "relativeness").
-
-  const StylePath* toPath = toAnimatablePath(value)->path();
-  if (!m_path || !toPath)
-    return true;
-  SVGPathByteStreamSource fromSource(path()->byteStream());
-  SVGPathByteStreamSource toSource(toPath->byteStream());
-
-  while (fromSource.hasMoreData()) {
-    if (!toSource.hasMoreData())
-      return true;
-
-    PathSegmentData fromSeg = fromSource.parseSegment();
-    PathSegmentData toSeg = toSource.parseSegment();
-    DCHECK_NE(fromSeg.command, PathSegUnknown);
-    DCHECK_NE(toSeg.command, PathSegUnknown);
-
-    if (toAbsolutePathSegType(fromSeg.command) !=
-        toAbsolutePathSegType(toSeg.command))
-      return true;
-  }
-
-  return toSource.hasMoreData();
-}
-
-PassRefPtr<AnimatableValue> AnimatablePath::interpolateTo(
-    const AnimatableValue* value,
-    double fraction) const {
-  if (usesDefaultInterpolationWith(value))
-    return defaultInterpolateTo(this, value, fraction);
-
-  std::unique_ptr<SVGPathByteStream> byteStream = SVGPathByteStream::create();
-  SVGPathByteStreamBuilder builder(*byteStream);
-
-  SVGPathByteStreamSource fromSource(path()->byteStream());
-  SVGPathByteStreamSource toSource(
-      toAnimatablePath(value)->path()->byteStream());
-
-  SVGPathBlender blender(&fromSource, &toSource, &builder);
-  bool ok = blender.blendAnimatedPath(fraction);
-  ALLOW_UNUSED_LOCAL(ok);
-  return AnimatablePath::create(StylePath::create(std::move(byteStream)));
-}
-
 bool AnimatablePath::equalTo(const AnimatableValue* value) const {
-  return dataEquivalent(m_path.get(), toAnimatablePath(value)->path());
+  return dataEquivalent(m_path.get(), toAnimatablePath(value)->m_path.get());
 }
 
 }  // namespace blink