Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/platform/animation/CompositorTransformKeyframe.cpp

 // 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.
 
 #include "platform/animation/CompositorTransformKeyframe.h"
 
-#include <memory>
-
 namespace blink {
 
-CompositorTransformKeyframe::CompositorTransformKeyframe(double time, std::unique_ptr<CompositorTransformOperations> value)
+CompositorTransformKeyframe::CompositorTransformKeyframe(double time, PassOwnPtr<CompositorTransformOperations> value)
     : m_time(time)
     , m_value(std::move(value))
 {
 }
 
 CompositorTransformKeyframe::~CompositorTransformKeyframe()
 {
     m_value.reset();
 }
 
 double CompositorTransformKeyframe::time() const
 {
     return m_time;
 }
 
 const CompositorTransformOperations& CompositorTransformKeyframe::value() const
 {
     return *m_value.get();
 }
 
 } // namespace blink