Remove OwnPtr from Blink.

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

 // Copyright 2016 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 PathInterpolationFunctions_h
 #define PathInterpolationFunctions_h
 
 #include "core/animation/InterpolationType.h"
 #include "core/svg/SVGPathByteStream.h"
+#include <memory>
 
 namespace blink {
 
 class StylePath;
 
 class PathInterpolationFunctions {
 public:
-    static PassOwnPtr<SVGPathByteStream> appliedValue(const InterpolableValue&, const NonInterpolableValue*);
+    static std::unique_ptr<SVGPathByteStream> appliedValue(const InterpolableValue&, const NonInterpolableValue*);
 
     static void composite(UnderlyingValueOwner&, double underlyingFraction, const InterpolationType&, const InterpolationValue&);
 
     static InterpolationValue convertValue(const SVGPathByteStream&);
 
     static InterpolationValue convertValue(const StylePath*);
 
     static InterpolationValue maybeConvertNeutral(const InterpolationValue& underlying, InterpolationType::ConversionCheckers&);
 
     static PairwiseInterpolationValue maybeMergeSingles(InterpolationValue&& start, InterpolationValue&& end);
 };
 
 } // namespace blink
 
 #endif // PathInterpolationFunctions_h