Remove OwnPtr from Blink.

third_party/WebKit/Source/core/layout/svg/LayoutSVGResourceGradient.h

 /*
  * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 10 matching lines @@
 
 #ifndef LayoutSVGResourceGradient_h
 #define LayoutSVGResourceGradient_h
 
 #include "core/layout/svg/LayoutSVGResourcePaintServer.h"
 #include "core/svg/SVGGradientElement.h"
 #include "platform/geometry/FloatRect.h"
 #include "platform/graphics/Gradient.h"
 #include "platform/transforms/AffineTransform.h"
 #include "wtf/HashMap.h"
+#include <memory>
 
 namespace blink {
 
 struct GradientData {
     USING_FAST_MALLOC(GradientData);
 public:
     RefPtr<Gradient> gradient;
     AffineTransform userspaceTransform;
 };
 
@@ skipping 13 matching lines @@
 
     virtual SVGUnitTypes::SVGUnitType gradientUnits() const = 0;
     virtual AffineTransform calculateGradientTransform() const = 0;
     virtual bool collectGradientAttributes(SVGGradientElement*) = 0;
     virtual PassRefPtr<Gradient> buildGradient() const = 0;
 
     static GradientSpreadMethod platformSpreadMethodFromSVGType(SVGSpreadMethodType);
 
 private:
     bool m_shouldCollectGradientAttributes : 1;
-    HashMap<const LayoutObject*, OwnPtr<GradientData>> m_gradientMap;
+    HashMap<const LayoutObject*, std::unique_ptr<GradientData>> m_gradientMap;
 };
 
 } // namespace blink
 
 #endif