Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/core/paint/ObjectPaintProperties.h

 // Copyright 2015 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 ObjectPaintProperties_h
 #define ObjectPaintProperties_h
 
 #include "platform/geometry/LayoutPoint.h"
 #include "platform/graphics/paint/ClipPaintPropertyNode.h"
 #include "platform/graphics/paint/EffectPaintPropertyNode.h"
 #include "platform/graphics/paint/PaintChunkProperties.h"
 #include "platform/graphics/paint/TransformPaintPropertyNode.h"
+#include "wtf/PassOwnPtr.h"
 #include "wtf/PassRefPtr.h"
-#include "wtf/PtrUtil.h"
 #include "wtf/RefPtr.h"
-#include <memory>
 
 namespace blink {
 
 // This class stores property tree related information associated with a LayoutObject.
 // Currently there are two groups of information:
 // 1. The set of property nodes created locally by this LayoutObject.
 // 2. [Optional] A suite of property nodes (PaintChunkProperties) and paint offset
 //    that can be used to paint the border box of this LayoutObject.
 class ObjectPaintProperties {
     WTF_MAKE_NONCOPYABLE(ObjectPaintProperties);
     USING_FAST_MALLOC(ObjectPaintProperties);
 public:
     struct LocalBorderBoxProperties;
 
-    static std::unique_ptr<ObjectPaintProperties> create()
+    static PassOwnPtr<ObjectPaintProperties> create()
     {
-        return wrapUnique(new ObjectPaintProperties());
+        return adoptPtr(new ObjectPaintProperties());
     }
 
     // The hierarchy of transform subtree created by a LayoutObject.
     // [ paintOffsetTranslation ]           Normally paint offset is accumulated without creating a node
     // |                                    until we see, for example, transform or position:fixed.
     // +---[ transform ]                    The space created by CSS transform.
     //     |                                This is the local border box space, see: LocalBorderBoxProperties below.
     //     +---[ perspective ]              The space created by CSS perspective.
     //     |   +---[ svgLocalToBorderBoxTransform ] Additional transform for children of the outermost root SVG.
     //     |              OR                (SVG does not support scrolling.)
@@ skipping 46 matching lines @@
     {
         DCHECK(!scrollTranslation()) << "SVG elements cannot scroll so there should never be both a scroll translation and an SVG local to border box transform.";
         m_svgLocalToBorderBoxTransform = transform;
     }
     void setScrollTranslation(PassRefPtr<TransformPaintPropertyNode> translation)
     {
         DCHECK(!svgLocalToBorderBoxTransform()) << "SVG elements cannot scroll so there should never be both a scroll translation and an SVG local to border box transform.";
         m_scrollTranslation = translation;
     }
     void setScrollbarPaintOffset(PassRefPtr<TransformPaintPropertyNode> paintOffset) { m_scrollbarPaintOffset = paintOffset; }
-    void setLocalBorderBoxProperties(std::unique_ptr<LocalBorderBoxProperties> properties) { m_localBorderBoxProperties = std::move(properties); }
+    void setLocalBorderBoxProperties(PassOwnPtr<LocalBorderBoxProperties> properties) { m_localBorderBoxProperties = std::move(properties); }
 
     RefPtr<TransformPaintPropertyNode> m_paintOffsetTranslation;
     RefPtr<TransformPaintPropertyNode> m_transform;
     RefPtr<EffectPaintPropertyNode> m_effect;
     RefPtr<ClipPaintPropertyNode> m_cssClip;
     RefPtr<ClipPaintPropertyNode> m_cssClipFixedPosition;
     RefPtr<ClipPaintPropertyNode> m_overflowClip;
     RefPtr<TransformPaintPropertyNode> m_perspective;
     // TODO(pdr): Only LayoutSVGRoot needs this and it should be moved there.
     RefPtr<TransformPaintPropertyNode> m_svgLocalToBorderBoxTransform;
     RefPtr<TransformPaintPropertyNode> m_scrollTranslation;
     RefPtr<TransformPaintPropertyNode> m_scrollbarPaintOffset;
 
-    std::unique_ptr<LocalBorderBoxProperties> m_localBorderBoxProperties;
+    OwnPtr<LocalBorderBoxProperties> m_localBorderBoxProperties;
 };
 
 } // namespace blink
 
 #endif // ObjectPaintProperties_h