Make WebTaskRunner ThreadSafeRefCounted

third_party/WebKit/Source/core/html/parser/HTMLParserScheduler.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 49 matching lines @@
   double m_startTime;
   size_t m_processedElementTokens;
 };
 
 class HTMLParserScheduler final
     : public GarbageCollectedFinalized<HTMLParserScheduler> {
   WTF_MAKE_NONCOPYABLE(HTMLParserScheduler);
 
  public:
   static HTMLParserScheduler* create(HTMLDocumentParser* parser,
-                                     WebTaskRunner* loadingTaskRunner) {
-    return new HTMLParserScheduler(parser, loadingTaskRunner);
+                                     RefPtr<WebTaskRunner> loadingTaskRunner) {
+    return new HTMLParserScheduler(parser, std::move(loadingTaskRunner));
   }
   ~HTMLParserScheduler();
 
   bool isScheduledForResume() const;
   void scheduleForResume();
   bool yieldIfNeeded(const SpeculationsPumpSession&, bool startingScript);
 
   /**
      * Can only be called if this scheduler is suspended. If this is called,
      * then after the scheduler is resumed by calling resume(), this call
      * ensures that HTMLDocumentParser::resumeAfterYield will be called. Used to
      * signal this scheduler that the background html parser sent chunks to
      * HTMLDocumentParser while it was suspended.
      */
   void forceResumeAfterYield();
 
   void suspend();
   void resume();
 
   void detach();  // Clear active tasks if any.
 
   DECLARE_TRACE();
 
  private:
-  HTMLParserScheduler(HTMLDocumentParser*, WebTaskRunner*);
+  HTMLParserScheduler(HTMLDocumentParser*, RefPtr<WebTaskRunner>);
 
   bool shouldYield(const SpeculationsPumpSession&, bool startingScript) const;
   void continueParsing();
 
   Member<HTMLDocumentParser> m_parser;
-  std::unique_ptr<WebTaskRunner> m_loadingTaskRunner;
+  RefPtr<WebTaskRunner> m_loadingTaskRunner;
 
   TaskHandle m_cancellableContinueParseTaskHandle;
   bool m_isSuspendedWithActiveTimer;
 };
 
 }  // namespace blink
 
 #endif