include RefCounted.h where needed, only.

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/RefPtr.h"
 #include "wtf/ThreadSafeRefCounted.h"
 #include "wtf/ThreadingPrimitives.h"
 #include "wtf/Vector.h"
 
 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
@@ skipping 18 matching lines @@
 private:
     ParsedChunkQueue();
 
     Mutex m_mutex;
     Vector<OwnPtr<HTMLDocumentParser::ParsedChunk>> m_pendingChunks;
 };
 
 } // namespace blink
 
 #endif