Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/core/html/parser/ParsedChunkQueue.h

 // Copyright 2015 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.
 
 #ifndef ParsedChunkQueue_h
 #define ParsedChunkQueue_h
 
 #include "core/html/parser/HTMLDocumentParser.h"
 #include "wtf/Deque.h"
+#include "wtf/OwnPtr.h"
+#include "wtf/PassOwnPtr.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/ThreadSafeRefCounted.h"
 #include "wtf/ThreadingPrimitives.h"
 #include "wtf/Vector.h"
-#include <memory>
 
 namespace blink {
 
 // ParsedChunkQueue is used to transfer parsed HTML token chunks
 // from BackgroundHTMLParser thread to Blink main thread without
 // spamming task queue.
 // ParsedChunkQueue is accessed from both BackgroundHTMLParser
 // thread (producer) and Blink main thread (consumer).
 // Access to the backend queue vector is protected by a mutex.
 // If enqueue is done against empty queue, BackgroundHTMLParser
 // thread kicks a consumer task on Blink main thread.
 class ParsedChunkQueue : public ThreadSafeRefCounted<ParsedChunkQueue> {
 public:
     static PassRefPtr<ParsedChunkQueue> create()
     {
         return adoptRef(new ParsedChunkQueue);
     }
 
     ~ParsedChunkQueue();
 
-    bool enqueue(std::unique_ptr<HTMLDocumentParser::ParsedChunk>);
+    bool enqueue(PassOwnPtr<HTMLDocumentParser::ParsedChunk>);
     void clear();
 
-    void takeAll(Vector<std::unique_ptr<HTMLDocumentParser::ParsedChunk>>&);
+    void takeAll(Vector<OwnPtr<HTMLDocumentParser::ParsedChunk>>&);
 
 private:
     ParsedChunkQueue();
 
     Mutex m_mutex;
-    Vector<std::unique_ptr<HTMLDocumentParser::ParsedChunk>> m_pendingChunks;
+    Vector<OwnPtr<HTMLDocumentParser::ParsedChunk>> m_pendingChunks;
 };
 
 } // namespace blink
 
 #endif