Hoist cue "deactivation" out of TextTrackCueList::remove

Source/core/html/track/TextTrack.cpp

 /*
  * 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 256 matching lines @@
         exceptionState.throwDOMException(NotFoundError, "The specified cue is not listed in the TextTrack's list of cues.");
         return;
     }
 
     // 2. Remove cue from the method's TextTrack object's text track's text track list of cues.
     if (!m_cues || !m_cues->remove(cue)) {
         exceptionState.throwDOMException(InvalidStateError, "Failed to remove the specified cue.");
         return;
     }
 
+    cue->setIsActive(false);
+    cue->removeDisplayTree();
+
     cue->setTrack(0);
     if (cueTimeline())
         cueTimeline()->removeCue(this, cue);
 }
 
 VTTRegionList* TextTrack::ensureVTTRegionList()
 {
     if (!m_regions)
         m_regions = VTTRegionList::create();
 
@@ skipping 162 matching lines @@
 DEFINE_TRACE(TextTrack)
 {
     visitor->trace(m_cues);
     visitor->trace(m_regions);
     visitor->trace(m_trackList);
     TrackBase::trace(visitor);
     EventTargetWithInlineData::trace(visitor);
 }
 
 } // namespace blink