Remove OwnPtr from Blink.

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

 // 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.
 
 #ifndef SVGPathSegInterpolationFunctions_h
 #define SVGPathSegInterpolationFunctions_h
 
 #include "core/animation/InterpolableValue.h"
 #include "core/svg/SVGPathData.h"
+#include <memory>
 
 namespace blink {
 
 struct PathCoordinates {
     double initialX = 0;
     double initialY = 0;
     double currentX = 0;
     double currentY = 0;
 };
 
 class SVGPathSegInterpolationFunctions {
     STATIC_ONLY(SVGPathSegInterpolationFunctions);
 public:
-    static PassOwnPtr<InterpolableValue> consumePathSeg(const PathSegmentData&, PathCoordinates& currentCoordinates);
+    static std::unique_ptr<InterpolableValue> consumePathSeg(const PathSegmentData&, PathCoordinates& currentCoordinates);
     static PathSegmentData consumeInterpolablePathSeg(const InterpolableValue&, SVGPathSegType, PathCoordinates& currentCoordinates);
 };
 
 } // namespace blink
 
 #endif // SVGPathSegInterpolationFunctions_h