Remove OwnPtr from Blink.

third_party/WebKit/Source/core/style/CounterDirectives.cpp

 /*
  * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 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.
  *
  */
 
 #include "core/style/CounterDirectives.h"
 
-#include "wtf/PassOwnPtr.h"
+#include "wtf/PtrUtil.h"
+#include <memory>
 
 namespace blink {
 
 bool operator==(const CounterDirectives& a, const CounterDirectives& b)
 {
     return a.isIncrement() == b.isIncrement()
         && a.incrementValue() == b.incrementValue()
         && a.isReset() == b.isReset()
         && a.resetValue() == b.resetValue();
 }
 
-PassOwnPtr<CounterDirectiveMap> clone(const CounterDirectiveMap& counterDirectives)
+std::unique_ptr<CounterDirectiveMap> clone(const CounterDirectiveMap& counterDirectives)
 {
-    OwnPtr<CounterDirectiveMap> result = adoptPtr(new CounterDirectiveMap);
+    std::unique_ptr<CounterDirectiveMap> result = wrapUnique(new CounterDirectiveMap);
     *result = counterDirectives;
     return result;
 }
 
 } // namespace blink