Revert of Implement WTF::WeakPtr in terms of base::WeakPtr

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

 /*
  * Copyright (C) 2013 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 47 matching lines @@
         std::unique_ptr<XSSAuditor> xssAuditor;
         std::unique_ptr<TextResourceDecoder> decoder;
         RefPtr<TokenizedChunkQueue> tokenizedChunkQueue;
         // outstandingTokenLimit must be greater than or equal to
         // pendingTokenLimit
         size_t outstandingTokenLimit;
         size_t pendingTokenLimit;
         bool shouldCoalesceChunks;
     };
 
-    // The returned BackgroundHTMLParser should only be used on the parser
-    // thread: it must first be initialized by calling init(), and free by
-    // calling stop().
-    static WeakPtr<BackgroundHTMLParser> create(std::unique_ptr<Configuration>, std::unique_ptr<WebTaskRunner>);
-    void init(const KURL& documentURL, std::unique_ptr<CachedDocumentParameters>, const MediaValuesCached::MediaValuesCachedData&);
+    static void start(PassRefPtr<WeakReference<BackgroundHTMLParser>>, std::unique_ptr<Configuration>, const KURL& documentURL, std::unique_ptr<CachedDocumentParameters>, const MediaValuesCached::MediaValuesCachedData&, std::unique_ptr<WebTaskRunner>);
 
     struct Checkpoint {
         USING_FAST_MALLOC(Checkpoint);
     public:
         WeakPtr<HTMLDocumentParser> parser;
         std::unique_ptr<HTMLToken> token;
         std::unique_ptr<HTMLTokenizer> tokenizer;
         HTMLTreeBuilderSimulator::State treeBuilderState;
         HTMLInputCheckpoint inputCheckpoint;
         TokenPreloadScannerCheckpoint preloadScannerCheckpoint;
         String unparsedInput;
     };
 
     void appendRawBytesFromMainThread(std::unique_ptr<Vector<char>>, double bytesReceivedTime);
     void setDecoder(std::unique_ptr<TextResourceDecoder>);
     void flush();
     void resumeFrom(std::unique_ptr<Checkpoint>);
     void startedChunkWithCheckpoint(HTMLInputCheckpoint);
     void finish();
     void stop();
 
     void forcePlaintextForTextDocument();
 
 private:
-    BackgroundHTMLParser(std::unique_ptr<Configuration>, std::unique_ptr<WebTaskRunner>);
+    BackgroundHTMLParser(PassRefPtr<WeakReference<BackgroundHTMLParser>>, std::unique_ptr<Configuration>, const KURL& documentURL, std::unique_ptr<CachedDocumentParameters>, const MediaValuesCached::MediaValuesCachedData&, std::unique_ptr<WebTaskRunner>);
     ~BackgroundHTMLParser();
 
     void appendDecodedBytes(const String&);
     void markEndOfFile();
     void pumpTokenizer();
 
     // Returns whether or not the HTMLDocumentParser should be notified of
     // pending chunks.
     bool queueChunkForMainThread();
     void notifyMainThreadOfNewChunks();
@@ skipping 32 matching lines @@
     int m_pendingCSPMetaTokenIndex;
 
     bool m_startingScript;
     double m_lastBytesReceivedTime;
     bool m_shouldCoalesceChunks;
 };
 
 } // namespace blink
 
 #endif