Eliminate TextTrackCue::updateDisplayTree()

Source/core/html/track/TextTrackContainer.cpp

 /*
  * Copyright (C) 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2012 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 88 matching lines @@
     // text track cue display state has a set of CSS boxes, then add those boxes
     // to output, and remove cue from cues.
 
     // There is nothing explicitly to be done here, as all the caching occurs
     // within the TextTrackCue instance itself. If parameters of the cue change,
     // the display tree is cleared.
 
     // 10. For each text track cue cue in cues that has not yet had
     // corresponding CSS boxes added to output, in text track cue order, run the
     // following substeps:
+    double movieTime = video.currentTime();
     for (size_t i = 0; i < activeCues.size(); ++i) {
         TextTrackCue* cue = activeCues[i].data();
 
         ASSERT(cue->isActive());
         if (!cue->track() || !cue->track()->isRendered() || !cue->isActive())
             continue;
 
         cue->updateDisplay(*this);
+        cue->updatePastAndFutureNodes(movieTime);
     }
 
     // 11. Return output.
     if (hasChildren())
         removeInlineStyleProperty(CSSPropertyDisplay);
     else
         setInlineStyleProperty(CSSPropertyDisplay, CSSValueNone);
 }
 
 } // namespace blink