Decouple tokenizer/tree builder state from WebVTTParser

Source/core/html/track/WebVTTParser.h

 /*
  * Copyright (C) 2011 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 82 matching lines @@
         return c == ' ' || c == '\t';
     }
     static String collectDigits(const String&, unsigned*);
     static String collectWord(const String&, unsigned*);
     static double collectTimeStamp(const String&, unsigned*);
 
     // Useful functions for parsing percentage settings.
     static float parseFloatPercentageValue(const String&, bool&);
     static FloatPoint parseFloatPercentageValuePair(const String&, char, bool&);
 
+    // Create the DocumentFragment representation of the WebVTT cue text.
+    static PassRefPtr<DocumentFragment> createDocumentFragmentFromCueText(Document&, const String&);
+
     // Input data to the parser to parse.
     void parseBytes(const char* data, unsigned length);
 
     // Transfers ownership of last parsed cues to caller.
     void getNewCues(Vector<RefPtr<TextTrackCue> >&);
     void getNewRegions(Vector<RefPtr<TextTrackRegion> >&);
 
-    PassRefPtr<DocumentFragment> createDocumentFragmentFromCueText(const String&);
-
 private:
     WebVTTParser(WebVTTParserClient*, Document&);
 
     Document* m_document;
     ParseState m_state;
 
     bool hasRequiredFileIdentifier(const String& line);
     ParseState collectCueId(const String&);
     ParseState collectTimingsAndSettings(const String&);
     ParseState collectCueText(const String&, bool);
     ParseState ignoreBadCue(const String&);
 
     void createNewCue();
     void resetCueValues();
 
     void collectMetadataHeader(const String&);
     void createNewRegion();
 
     void skipWhiteSpace(const String&, unsigned*);
     static void skipLineTerminator(const String& data, unsigned*);
     static String collectNextLine(const String& data, unsigned*);
 
-    void constructTreeFromToken(Document&);
-
     String m_currentHeaderName;
     String m_currentHeaderValue;
 
     RefPtr<TextResourceDecoder> m_decoder;
     String m_currentId;
     double m_currentStartTime;
     double m_currentEndTime;
     StringBuilder m_currentContent;
     String m_currentSettings;
 
-    WebVTTToken m_token;
-    OwnPtr<WebVTTTokenizer> m_tokenizer;
-
-    RefPtr<ContainerNode> m_currentNode;
-
     WebVTTParserClient* m_client;
 
-    Vector<AtomicString> m_languageStack;
     Vector<RefPtr<TextTrackCue> > m_cuelist;
 
     Vector<RefPtr<TextTrackRegion> > m_regionList;
 };
 
 } // namespace WebCore
 
 #endif