remove DocumentParser::startParsing()

Source/core/dom/DocumentParser.h

 /*
  * Copyright (C) 2000 Peter Kelly (pmk@post.com)
  * Copyright (C) 2005, 2006 Apple Computer, Inc.
  * Copyright (C) 2007 Samuel Weinig (sam@webkit.org)
  * Copyright (C) 2010 Google, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 61 matching lines @@
     virtual bool processingData() const { return false; }
 
     // document() will return 0 after detach() is called.
     Document* document() const { ASSERT(m_document); return m_document; }
 
     bool isParsing() const { return m_state == ParsingState; }
     bool isStopping() const { return m_state == StoppingState; }
     bool isStopped() const { return m_state >= StoppedState; }
     bool isDetached() const { return m_state == DetachedState; }
 
-    // FIXME: Is this necessary? Does XMLDocumentParserLibxml2 really need to set this?
-    virtual void startParsing();
-
     // prepareToStop() is used when the EOF token is encountered and parsing is to be
     // stopped normally.
     virtual void prepareToStopParsing();
 
     // stopParsing() is used when a load is canceled/stopped.
     // stopParsing() is currently different from detach(), but shouldn't be.
     // It should NOT be ok to call any methods on DocumentParser after either
     // detach() or stopParsing() but right now only detach() will ASSERT.
     virtual void stopParsing();
 
@@ skipping 26 matching lines @@
     bool m_documentWasLoadedAsPartOfNavigation;
 
     // Every DocumentParser needs a pointer back to the document.
     // m_document will be 0 after the parser is stopped.
     RawPtrWillBeMember<Document> m_document;
 };
 
 } // namespace blink
 
 #endif // DocumentParser_h