Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/wtf/text/TextCodecReplacement.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "wtf/text/TextCodecReplacement.h"
 
-#include "wtf/PtrUtil.h"
+#include "wtf/PassOwnPtr.h"
 #include "wtf/text/CharacterNames.h"
 #include "wtf/text/WTFString.h"
-#include <memory>
 
 namespace WTF {
 
 TextCodecReplacement::TextCodecReplacement()
     : m_replacementErrorReturned(false)
 {
 }
 
 void TextCodecReplacement::registerEncodingNames(EncodingNameRegistrar registrar)
 {
     // The 'replacement' label itself should not be referenceable by
     // resources or script - it's a specification convenience - but much of
     // the wtf/text API asserts that an encoding name is a label for itself.
     // This is handled in TextEncoding by marking it as not valid.
     registrar("replacement", "replacement");
 
     registrar("csiso2022kr", "replacement");
     registrar("hz-gb-2312", "replacement");
     registrar("iso-2022-cn", "replacement");
     registrar("iso-2022-cn-ext", "replacement");
     registrar("iso-2022-kr", "replacement");
 }
 
-static std::unique_ptr<TextCodec> newStreamingTextDecoderReplacement(const TextEncoding&, const void*)
+static PassOwnPtr<TextCodec> newStreamingTextDecoderReplacement(const TextEncoding&, const void*)
 {
-    return wrapUnique(new TextCodecReplacement);
+    return adoptPtr(new TextCodecReplacement);
 }
 
 void TextCodecReplacement::registerCodecs(TextCodecRegistrar registrar)
 {
     registrar("replacement", newStreamingTextDecoderReplacement, 0);
 }
 
 String TextCodecReplacement::decode(const char*, size_t length, FlushBehavior, bool, bool& sawError)
 {
     // https://encoding.spec.whatwg.org/#replacement-decoder
 
     // 1. If byte is end-of-stream, return finished.
     if (!length)
         return String();
 
     // 2. If replacement error returned flag is unset, set the replacement
     // error returned flag and return error.
     if (!m_replacementErrorReturned) {
         m_replacementErrorReturned = true;
         sawError = true;
         return String(&replacementCharacter, 1);
     }
 
     // 3. Return finished.
     return String();
 }
 
 } // namespace WTF