Remove OwnPtr from Blink.

third_party/WebKit/Source/platform/text/LocaleMac.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 18 matching lines @@
  */
 
 #ifndef LocaleMac_h
 #define LocaleMac_h
 
 #include "platform/text/PlatformLocale.h"
 #include "wtf/Forward.h"
 #include "wtf/RetainPtr.h"
 #include "wtf/Vector.h"
 #include "wtf/text/WTFString.h"
+#include <memory>
 
 OBJC_CLASS NSCalendar;
 OBJC_CLASS NSDateFormatter;
 OBJC_CLASS NSLocale;
 
 namespace blink {
 
 class PLATFORM_EXPORT LocaleMac : public Locale {
 public:
-    static PassOwnPtr<LocaleMac> create(const String&);
-    static PassOwnPtr<LocaleMac> create(NSLocale*);
+    static std::unique_ptr<LocaleMac> create(const String&);
+    static std::unique_ptr<LocaleMac> create(NSLocale*);
     ~LocaleMac();
 
     const Vector<String>& weekDayShortLabels() override;
     unsigned firstDayOfWeek() override;
     bool isRTL() override;
 
     String dateFormat() override;
     String monthFormat() override;
     String shortMonthFormat() override;
     String timeFormat() override;
@@ skipping 29 matching lines @@
     String m_dateTimeFormatWithoutSeconds;
     Vector<String> m_shortMonthLabels;
     Vector<String> m_standAloneMonthLabels;
     Vector<String> m_shortStandAloneMonthLabels;
     Vector<String> m_timeAMPMLabels;
     bool m_didInitializeNumberData;
 };
 
 } // namespace blink
 #endif