Remove OwnPtr from Blink.

third_party/WebKit/Source/wtf/text/TextCodecUTF8.h

 /*
  * Copyright (C) 2011 Apple 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
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef TextCodecUTF8_h
 #define TextCodecUTF8_h
 
 #include "wtf/text/TextCodec.h"
+#include <memory>
 
 namespace WTF {
 
 class TextCodecUTF8 : public TextCodec {
 public:
     static void registerEncodingNames(EncodingNameRegistrar);
     static void registerCodecs(TextCodecRegistrar);
 
 protected:
     TextCodecUTF8() : m_partialSequenceSize(0) { }
 
 private:
-    static PassOwnPtr<TextCodec> create(const TextEncoding&, const void*);
+    static std::unique_ptr<TextCodec> create(const TextEncoding&, const void*);
 
     String decode(const char*, size_t length, FlushBehavior, bool stopOnError, bool& sawError) override;
     CString encode(const UChar*, size_t length, UnencodableHandling) override;
     CString encode(const LChar*, size_t length, UnencodableHandling) override;
 
     template<typename CharType>
     CString encodeCommon(const CharType* characters, size_t length);
 
     template <typename CharType>
     bool handlePartialSequence(CharType*& destination, const uint8_t*& source, const uint8_t* end, bool flush, bool stopOnError, bool& sawError);
     void handleError(UChar*& destination, bool stopOnError, bool& sawError);
     void consumePartialSequenceByte();
 
     int m_partialSequenceSize;
     uint8_t m_partialSequence[U8_MAX_LENGTH];
 
 };
 
 } // namespace WTF
 
 #endif // TextCodecUTF8_h