Remove OwnPtr from Blink.

third_party/WebKit/Source/wtf/text/TextPosition.h

 /*
  * Copyright (C) 2010, 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:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 12 matching lines @@
  */
 
 #ifndef TextPosition_h
 #define TextPosition_h
 
 #include "wtf/Allocator.h"
 #include "wtf/Assertions.h"
 #include "wtf/Vector.h"
 #include "wtf/WTFExport.h"
 #include "wtf/text/WTFString.h"
+#include <memory>
 
 namespace WTF {
 
 // An abstract number of element in a sequence. The sequence has a first element.
 // This type should be used instead of integer because 2 contradicting traditions can
 // call a first element '0' or '1' which makes integer type ambiguous.
 class OrdinalNumber final {
     DISALLOW_NEW();
 public:
     static OrdinalNumber fromZeroBasedInt(int zeroBasedInt) { return OrdinalNumber(zeroBasedInt); }
@@ skipping 36 matching lines @@
     // A value with line value less than a minimum; used as an impossible position.
     static TextPosition belowRangePosition() { return TextPosition(OrdinalNumber::beforeFirst(), OrdinalNumber::beforeFirst()); }
 
     // A value corresponding to a position with given offset within text having the specified line ending offsets.
     WTF_EXPORT static TextPosition fromOffsetAndLineEndings(unsigned, const Vector<unsigned>&);
 
     OrdinalNumber m_line;
     OrdinalNumber m_column;
 };
 
-WTF_EXPORT PassOwnPtr<Vector<unsigned>> lineEndings(const String&);
+WTF_EXPORT std::unique_ptr<Vector<unsigned>> lineEndings(const String&);
 
 } // namespace WTF
 
 using WTF::OrdinalNumber;
 
 using WTF::TextPosition;
 
 using WTF::lineEndings;
 
 #endif // TextPosition_h