Properly suspend HTMLDocumentParser

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 63 matching lines @@
     {
         return adoptPtr(new HTMLParserScheduler(parser));
     }
     ~HTMLParserScheduler();
 
     bool isScheduledForResume() const { return m_isSuspendedWithActiveTimer || m_continueNextChunkTimer.isActive(); }
 
     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();
 
 private:
     explicit HTMLParserScheduler(HTMLDocumentParser*);
 
     bool shouldYield(const SpeculationsPumpSession&, bool startingScript) const;
     void continueNextChunkTimerFired(Timer<HTMLParserScheduler>*);
 
     HTMLDocumentParser* m_parser;
 
     Timer<HTMLParserScheduler> m_continueNextChunkTimer;
     bool m_isSuspendedWithActiveTimer;
 };
 
 }
 
 #endif