Put the BackgroundHTMLParser on oilpan heap

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

Index: third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.h
diff --git a/third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.h b/third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.h
index 08491fd4bda732ec3a1343c643871287856c5e6d..eb2e69e8aa832cb9597bfbb08113c72d4cb0885e 100644
--- a/third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.h
+++ b/third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.h
@@ -71,7 +71,6 @@ class DocumentWriteEvaluator;
 class CORE_EXPORT HTMLDocumentParser : public ScriptableDocumentParser,
                                        private HTMLParserScriptRunnerHost {
   USING_GARBAGE_COLLECTED_MIXIN(HTMLDocumentParser);
-  USING_PRE_FINALIZER(HTMLDocumentParser, dispose);
 
  public:
   static HTMLDocumentParser* create(
@@ -82,9 +81,6 @@ class CORE_EXPORT HTMLDocumentParser : public ScriptableDocumentParser,
   ~HTMLDocumentParser() override;
   DECLARE_VIRTUAL_TRACE();
 
-  // TODO(alexclarke): Remove when background parser goes away.
-  void dispose();
-
   // Exposed for HTMLParserScheduler
   void resumeParsingAfterYield();
 
@@ -189,7 +185,6 @@ class CORE_EXPORT HTMLDocumentParser : public ScriptableDocumentParser,
   void appendCurrentInputStreamToPreloadScannerAndScan() final;
 
   void startBackgroundParser();
-  void stopBackgroundParser();
   void validateSpeculations(std::unique_ptr<TokenizedChunk> lastChunk);
   void discardSpeculationsAndResumeFrom(
       std::unique_ptr<TokenizedChunk> lastChunk,
@@ -247,7 +242,6 @@ class CORE_EXPORT HTMLDocumentParser : public ScriptableDocumentParser,
   // 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;
@@ -259,8 +253,7 @@ class CORE_EXPORT HTMLDocumentParser : public ScriptableDocumentParser,
   // 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;
@@ -279,7 +272,6 @@ class CORE_EXPORT HTMLDocumentParser : public ScriptableDocumentParser,
 
   bool m_shouldUseThreading;
   bool m_endWasDelayed;
-  bool m_haveBackgroundParser;
   bool m_tasksWereSuspended;
   unsigned m_pumpSessionNestingLevel;
   unsigned m_pumpSpeculationsSessionNestingLevel;