Stop calling configureTextTrackDisplay() in clearMediaPlayer()

Source/core/html/HTMLMediaElement.h

 /*
  * Copyright (C) 2007, 2008, 2009, 2010, 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 184 matching lines @@
     void removeVideoTrack(WebMediaPlayer::TrackId);
 
     void mediaPlayerDidAddTextTrack(WebInbandTextTrack*) final;
     void mediaPlayerDidRemoveTextTrack(WebInbandTextTrack*) final;
     // FIXME: Remove this when WebMediaPlayerClientImpl::loadInternal does not depend on it.
     KURL mediaPlayerPosterURL() override { return KURL(); }
 
     void honorUserPreferencesForAutomaticTextTrackSelection();
 
     bool textTracksAreReady() const;
-    enum VisibilityChangeAssumption {
-        AssumeNoVisibleChange,
-        AssumeVisibleChange
-    };
-    void configureTextTrackDisplay(VisibilityChangeAssumption);
+    void configureTextTrackDisplay();
     void updateTextTrackDisplay();
     double lastSeekTime() const { return m_lastSeekTime; }
     void textTrackReadyStateChanged(TextTrack*);
 
     void textTrackModeChanged(TextTrack*);
 
     // EventTarget function.
     // Both Node (via HTMLElement) and ActiveDOMObject define this method, which
     // causes an ambiguity error at compile time. This class's constructor
     // ensures that both implementations return document, so return the result
@@ skipping 358 matching lines @@
 inline bool isHTMLMediaElement(const HTMLElement& element)
 {
     return isHTMLAudioElement(element) || isHTMLVideoElement(element);
 }
 
 DEFINE_HTMLELEMENT_TYPE_CASTS_WITH_FUNCTION(HTMLMediaElement);
 
 } // namespace blink
 
 #endif // HTMLMediaElement_h