Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/core/style/CachedUAStyle.h

  /*
  * Copyright (C) 2013 Google, Inc.
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #ifndef CachedUAStyle_h
 #define CachedUAStyle_h
 
 #include "core/style/ComputedStyle.h"
 #include "wtf/Allocator.h"
 #include "wtf/Noncopyable.h"
-#include "wtf/PtrUtil.h"
-#include <memory>
 
 namespace blink {
 
 // LayoutTheme::adjustStyle wants the background and borders
 // as specified by the UA sheets, excluding any author rules.
 // We use this class to cache those values during
 // applyMatchedProperties for later use during adjustComputedStyle.
 class CachedUAStyle {
     USING_FAST_MALLOC(CachedUAStyle);
     WTF_MAKE_NONCOPYABLE(CachedUAStyle);
 public:
-    static std::unique_ptr<CachedUAStyle> create(const ComputedStyle* style)
+    static PassOwnPtr<CachedUAStyle> create(const ComputedStyle* style)
     {
-        return wrapUnique(new CachedUAStyle(style));
+        return adoptPtr(new CachedUAStyle(style));
     }
 
     BorderData border;
     FillLayer backgroundLayers;
     StyleColor backgroundColor;
 
 private:
     explicit CachedUAStyle(const ComputedStyle* style)
         : border(style->border())
         , backgroundLayers(style->backgroundLayers())
         , backgroundColor(style->backgroundColor())
     {
     }
 };
 
 
 
 } // namespace blink
 
 #endif // CachedUAStyle_h