Move text track active list management to CueTimeline

Source/core/html/shadow/MediaControlElements.cpp

Index: Source/core/html/shadow/MediaControlElements.cpp
diff --git a/Source/core/html/shadow/MediaControlElements.cpp b/Source/core/html/shadow/MediaControlElements.cpp
index c9e4573375d568b0a7b1db700132ae26b737da41..41e5c19557f92f8fb2f43fee1bc33e6037a23658 100644
--- a/Source/core/html/shadow/MediaControlElements.cpp
+++ b/Source/core/html/shadow/MediaControlElements.cpp
@@ -40,7 +40,9 @@
 #include "core/html/MediaController.h"
 #include "core/html/TimeRanges.h"
 #include "core/html/shadow/MediaControls.h"
+#include "core/html/track/CueTimeline.h"
 #include "core/html/track/TextTrack.h"
+#include "core/html/track/TextTrackCue.h"
 #include "core/html/track/vtt/VTTRegionList.h"
 #include "core/layout/LayoutSlider.h"
 #include "core/layout/LayoutTheme.h"
@@ -659,7 +661,7 @@ void MediaControlTextTrackContainerElement::updateDisplay()
     // 7. Let cues be an empty list of text track cues.
     // 8. For each track track in tracks, append to cues all the cues from
     // track's list of cues that have their text track cue active flag set.
-    CueList activeCues = video.currentlyActiveCues();
+    CueList activeCues = video.cueTimeline().currentlyActiveCues();
 
     // 9. If reset is false, then, for each text track cue cue in cues: if cue's
     // text track cue display state has a set of CSS boxes, then add those boxes