Remove the unused Document& argument to the TextTrack constructor

Source/core/html/track/TextTrack.h

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  * Copyright (C) 2011, 2012, 2013 Apple 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
@@ skipping 17 matching lines @@
 #define TextTrack_h
 
 #include "bindings/v8/ScriptWrappable.h"
 #include "core/events/EventTarget.h"
 #include "core/html/track/TrackBase.h"
 #include "platform/heap/Handle.h"
 #include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
-class Document;
 class ExceptionState;
 class HTMLMediaElement;
 class TextTrack;
 class TextTrackCue;
 class TextTrackCueList;
 class TextTrackList;
 class VTTRegion;
 class VTTRegionList;
 
 class TextTrack : public TrackBase, public ScriptWrappable, public EventTargetWithInlineData {
     REFCOUNTED_EVENT_TARGET(TrackBase);
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(TextTrack);
 public:
-    static PassRefPtrWillBeRawPtr<TextTrack> create(Document& document, const AtomicString& kind, const AtomicString& label, const AtomicString& language)
+    static PassRefPtrWillBeRawPtr<TextTrack> create(const AtomicString& kind, const AtomicString& label, const AtomicString& language)
     {
-        return adoptRefWillBeRefCountedGarbageCollected(new TextTrack(document, kind, label, language, emptyAtom, AddTrack));
+        return adoptRefWillBeRefCountedGarbageCollected(new TextTrack(kind, label, language, emptyAtom, AddTrack));
     }
     virtual ~TextTrack();
 
     virtual void setTrackList(TextTrackList*);
     TextTrackList* trackList() { return m_trackList; }
 
     virtual void setKind(const AtomicString&) OVERRIDE;
 
     static const AtomicString& subtitlesKeyword();
     static const AtomicString& captionsKeyword();
@@ skipping 48 matching lines @@
 
     void removeAllCues();
 
     // EventTarget methods
     virtual const AtomicString& interfaceName() const OVERRIDE;
     virtual ExecutionContext* executionContext() const OVERRIDE;
 
     virtual void trace(Visitor*) OVERRIDE;
 
 protected:
-    TextTrack(Document&, const AtomicString& kind, const AtomicString& label, const AtomicString& language, const AtomicString& id, TextTrackType);
+    TextTrack(const AtomicString& kind, const AtomicString& label, const AtomicString& language, const AtomicString& id, TextTrackType);
 
     virtual bool isValidKind(const AtomicString& kind) const OVERRIDE { return isValidKindKeyword(kind); }
     virtual AtomicString defaultKind() const OVERRIDE { return subtitlesKeyword(); }
 
     RefPtrWillBeMember<TextTrackCueList> m_cues;
 
 private:
     VTTRegionList* ensureVTTRegionList();
     RefPtrWillBeMember<VTTRegionList> m_regions;
 
     TextTrackCueList* ensureTextTrackCueList();
 
     RawPtrWillBeMember<TextTrackList> m_trackList;
     AtomicString m_mode;
     TextTrackType m_trackType;
     ReadinessState m_readinessState;
     int m_trackIndex;
     int m_renderedTrackIndex;
     bool m_hasBeenConfigured;
 };
 
 } // namespace WebCore
 
 #endif