Remove OwnPtr from Blink.

third_party/WebKit/Source/platform/animation/CompositorAnimation.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 CompositorAnimation_h
 #define CompositorAnimation_h
 
 #include "cc/animation/animation.h"
 #include "platform/PlatformExport.h"
 #include "platform/animation/CompositorTargetProperty.h"
 #include "wtf/Noncopyable.h"
-#include "wtf/PassOwnPtr.h"
-
 #include <memory>
 
 namespace cc {
 class Animation;
 }
 
 namespace blink {
 
 class CompositorAnimationCurve;
 class CompositorFloatAnimationCurve;
@@ skipping 33 matching lines @@
     void setPlaybackRate(double);
 
     FillMode getFillMode() const;
     void setFillMode(FillMode);
 
     double iterationStart() const;
     void setIterationStart(double);
 
     std::unique_ptr<cc::Animation> passAnimation();
 
-    PassOwnPtr<CompositorFloatAnimationCurve> floatCurveForTesting() const;
+    std::unique_ptr<CompositorFloatAnimationCurve> floatCurveForTesting() const;
 
 private:
     std::unique_ptr<cc::Animation> m_animation;
 };
 
 } // namespace blink
 
 #endif // CompositorAnimation_h