InlinedVisitor: Migrate html to use inlined tracing

Source/core/html/track/vtt/VTTParser.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 90 matching lines @@
     static PassRefPtrWillBeRawPtr<DocumentFragment> createDocumentFragmentFromCueText(Document&, const String&);
 
     // Input data to the parser to parse.
     void parseBytes(const char* data, unsigned length);
     void flush();
 
     // Transfers ownership of last parsed cues to caller.
     void getNewCues(WillBeHeapVector<RefPtrWillBeMember<VTTCue>>&);
     void getNewRegions(WillBeHeapVector<RefPtrWillBeMember<VTTRegion>>&);
 
-    void trace(Visitor*);
+    DECLARE_TRACE();
 
 private:
     VTTParser(VTTParserClient*, Document&);
 
     RawPtrWillBeMember<Document> m_document;
     ParseState m_state;
 
     void parse();
     void flushPendingCue();
     bool hasRequiredFileIdentifier(const String& line);
@@ skipping 22 matching lines @@
     VTTParserClient* m_client;
 
     WillBeHeapVector<RefPtrWillBeMember<VTTCue>> m_cueList;
 
     WillBeHeapVector<RefPtrWillBeMember<VTTRegion>> m_regionList;
 };
 
 } // namespace blink
 
 #endif