Remove OwnPtr from Blink.

third_party/WebKit/Source/core/animation/CSSTransformInterpolationType.cpp

Index: third_party/WebKit/Source/core/animation/CSSTransformInterpolationType.cpp
diff --git a/third_party/WebKit/Source/core/animation/CSSTransformInterpolationType.cpp b/third_party/WebKit/Source/core/animation/CSSTransformInterpolationType.cpp
index b44eb4033cd4073c19683011113102bf73036201..f938343dcf0bc0eae07178cf4f3fdeb7b8c5ae13 100644
--- a/third_party/WebKit/Source/core/animation/CSSTransformInterpolationType.cpp
+++ b/third_party/WebKit/Source/core/animation/CSSTransformInterpolationType.cpp
@@ -12,6 +12,8 @@
 #include "core/css/resolver/TransformBuilder.h"
 #include "platform/transforms/TransformOperations.h"
 #include "platform/transforms/TranslateTransformOperation.h"
+#include "wtf/PtrUtil.h"
+#include <memory>
 
 namespace blink {
 
@@ -107,9 +109,9 @@ InterpolationValue convertTransform(const TransformOperations& transform)
 
 class InheritedTransformChecker : public InterpolationType::ConversionChecker {
 public:
-    static PassOwnPtr<InheritedTransformChecker> create(const TransformOperations& inheritedTransform)
+    static std::unique_ptr<InheritedTransformChecker> create(const TransformOperations& inheritedTransform)
     {
-        return adoptPtr(new InheritedTransformChecker(inheritedTransform));
+        return wrapUnique(new InheritedTransformChecker(inheritedTransform));
     }
 
     bool isValid(const InterpolationEnvironment& environment, const InterpolationValue& underlying) const final
@@ -160,7 +162,7 @@ InterpolationValue CSSTransformInterpolationType::maybeConvertValue(const CSSVal
                 primitiveValue.accumulateLengthArray(lengthArray);
             }
         }
-        OwnPtr<InterpolationType::ConversionChecker> lengthUnitsChecker = LengthUnitsChecker::maybeCreate(std::move(lengthArray), state);
+        std::unique_ptr<InterpolationType::ConversionChecker> lengthUnitsChecker = LengthUnitsChecker::maybeCreate(std::move(lengthArray), state);
 
         if (lengthUnitsChecker)
             conversionCheckers.append(std::move(lengthUnitsChecker));