Put the BackgroundHTMLParser on oilpan heap

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

 /*
  * Copyright (C) 2010 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 53 matching lines @@
 class HTMLPreloadScanner;
 class HTMLResourcePreloader;
 class HTMLTreeBuilder;
 class SegmentedString;
 class TokenizedChunkQueue;
 class DocumentWriteEvaluator;
 
 class CORE_EXPORT HTMLDocumentParser : public ScriptableDocumentParser,
                                        private HTMLParserScriptRunnerHost {
   USING_GARBAGE_COLLECTED_MIXIN(HTMLDocumentParser);
-  USING_PRE_FINALIZER(HTMLDocumentParser, dispose);
 
  public:
   static HTMLDocumentParser* create(
       HTMLDocument& document,
       ParserSynchronizationPolicy backgroundParsingPolicy) {
     return new HTMLDocumentParser(document, backgroundParsingPolicy);
   }
   ~HTMLDocumentParser() override;
   DECLARE_VIRTUAL_TRACE();
 
-  // TODO(alexclarke): Remove when background parser goes away.
-  void dispose();
-
   // Exposed for HTMLParserScheduler
   void resumeParsingAfterYield();
 
   static void parseDocumentFragment(
       const String&,
       DocumentFragment*,
       Element* contextElement,
       ParserContentPolicy = AllowScriptingContent);
 
   // Exposed for testing.
@@ skipping 84 matching lines @@
 
   // HTMLParserScriptRunnerHost
   void notifyScriptLoaded(PendingScript*) final;
   HTMLInputStream& inputStream() final { return m_input; }
   bool hasPreloadScanner() const final {
     return m_preloadScanner.get() && !shouldUseThreading();
   }
   void appendCurrentInputStreamToPreloadScannerAndScan() final;
 
   void startBackgroundParser();
-  void stopBackgroundParser();
   void validateSpeculations(std::unique_ptr<TokenizedChunk> lastChunk);
   void discardSpeculationsAndResumeFrom(
       std::unique_ptr<TokenizedChunk> lastChunk,
       std::unique_ptr<HTMLToken>,
       std::unique_ptr<HTMLTokenizer>);
   size_t processTokenizedChunkFromBackgroundParser(
       std::unique_ptr<TokenizedChunk>);
   void pumpPendingSpeculations();
 
   bool canTakeNextToken();
@@ skipping 37 matching lines @@
 
   std::unique_ptr<HTMLToken> m_token;
   std::unique_ptr<HTMLTokenizer> m_tokenizer;
   Member<HTMLParserScriptRunner> m_scriptRunner;
   Member<HTMLTreeBuilder> m_treeBuilder;
 
   std::unique_ptr<HTMLPreloadScanner> m_preloadScanner;
   // A scanner used only for input provided to the insert() method.
   std::unique_ptr<HTMLPreloadScanner> m_insertionPreloadScanner;
 
-  RefPtr<WebTaskRunner> m_loadingTaskRunner;
   Member<HTMLParserScheduler> m_parserScheduler;
   HTMLSourceTracker m_sourceTracker;
   TextPosition m_textPosition;
   XSSAuditor m_xssAuditor;
   XSSAuditorDelegate m_xssAuditorDelegate;
 
   // FIXME: m_lastChunkBeforePause, m_tokenizer, m_token, and m_input should be
   // combined into a single state object so they can be set and cleared together
   // and passed between threads together.
   std::unique_ptr<TokenizedChunk> m_lastChunkBeforePause;
   Deque<std::unique_ptr<TokenizedChunk>> m_speculations;
-  WeakPtrFactory<HTMLDocumentParser> m_weakFactory;
-  WeakPtr<BackgroundHTMLParser> m_backgroundParser;
+  Member<BackgroundHTMLParser> m_backgroundParser;
   Member<HTMLResourcePreloader> m_preloader;
   PreloadRequestStream m_queuedPreloads;
   Vector<String> m_queuedDocumentWriteScripts;
   RefPtr<TokenizedChunkQueue> m_tokenizedChunkQueue;
   std::unique_ptr<DocumentWriteEvaluator> m_evaluator;
 
   // If this is non-null, then there is a meta CSP token somewhere in the
   // speculation buffer. Preloads will be deferred until a token matching this
   // pointer is parsed and the CSP policy is applied. Note that this pointer
   // tracks the *last* meta token in the speculation buffer, so it overestimates
   // how long to defer preloads. This is for simplicity, as the alternative
   // would require keeping track of token positions of preload requests.
   CompactHTMLToken* m_pendingCSPMetaToken;
 
   TaskHandle m_resumeParsingTaskHandle;
 
   bool m_shouldUseThreading;
   bool m_endWasDelayed;
-  bool m_haveBackgroundParser;
   bool m_tasksWereSuspended;
   unsigned m_pumpSessionNestingLevel;
   unsigned m_pumpSpeculationsSessionNestingLevel;
   bool m_isParsingAtLineNumber;
   bool m_triedLoadingLinkHeaders;
   bool m_addedPendingStylesheetInBody;
   bool m_isWaitingForStylesheets;
 };
 
 }  // namespace blink
 
 #endif  // HTMLDocumentParser_h