Ignore MediaController in the closed captions button logic

Source/core/html/MediaController.cpp

 /*
  * Copyright (C) 2011 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 37 matching lines @@
 MediaController::MediaController(ExecutionContext* context)
     : m_paused(false)
     , m_defaultPlaybackRate(1)
     , m_volume(1)
     , m_position(MediaPlayer::invalidTime())
     , m_muted(false)
     , m_readyState(HTMLMediaElement::HAVE_NOTHING)
     , m_playbackState(WAITING)
     , m_asyncEventTimer(this, &MediaController::asyncEventTimerFired)
     , m_clearPositionTimer(this, &MediaController::clearPositionTimerFired)
-    , m_closedCaptionsVisible(false)
     , m_clock(Clock::create())
     , m_executionContext(context)
     , m_timeupdateTimer(this, &MediaController::timeupdateTimerFired)
     , m_previousTimeupdateTime(0)
 {
     ScriptWrappable::init(this);
 }
 
 MediaController::~MediaController()
 {
@@ skipping 499 matching lines @@
 
 bool MediaController::hasVideo() const
 {
     for (size_t index = 0; index < m_mediaElements.size(); ++index) {
         if (m_mediaElements[index]->hasVideo())
             return true;
     }
     return false;
 }
 
-bool MediaController::hasClosedCaptions() const
-{
-    for (size_t index = 0; index < m_mediaElements.size(); ++index) {
-        if (m_mediaElements[index]->hasClosedCaptions())
-            return true;
-    }
-    return false;
-}
-
-void MediaController::setClosedCaptionsVisible(bool visible)
-{
-    m_closedCaptionsVisible = visible;
-    for (size_t index = 0; index < m_mediaElements.size(); ++index)
-        m_mediaElements[index]->setClosedCaptionsVisible(visible);
-}
-
 void MediaController::beginScrubbing()
 {
     for (size_t index = 0; index < m_mediaElements.size(); ++index)
         m_mediaElements[index]->beginScrubbing();
     if (m_playbackState == PLAYING)
         m_clock->stop();
 }
 
 void MediaController::endScrubbing()
 {
@@ skipping 41 matching lines @@
 {
     double now = WTF::currentTime();
     double timedelta = now - m_previousTimeupdateTime;
 
     if (timedelta < maxTimeupdateEventFrequency)
         return;
 
     scheduleEvent(EventTypeNames::timeupdate);
     m_previousTimeupdateTime = now;
 }