Auto merge of #25364 - kunalmohan:22912-MediaTracks, r=jdm

Add `track_list` member to AudioTrack, VideoTrack, TextTrack structs

Add member to the track structs pointing at their associated tracklist
and update it when the track is added or removed from a tracklist.

r?@jdm

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- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #22912  (GitHub issue number if applicable)

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1 files changed, 5 insertions, 0 deletions

diff --git a/components/script/dom/audiotracklist.rs b/components/script/dom/audiotracklist.rs
index e26f23cb2a8..5191221b7d9 100644
--- a/components/script/dom/audiotracklist.rs
+++ b/components/script/dom/audiotracklist.rs
@@ -104,9 +104,14 @@ impl AudioTrackList {
 
     pub fn add(&self, track: &AudioTrack) {
         self.tracks.borrow_mut().push(Dom::from_ref(track));
+        track.add_track_list(self);
     }
 
     pub fn clear(&self) {
+        self.tracks
+            .borrow()
+            .iter()
+            .for_each(|t| t.remove_track_list());
         self.tracks.borrow_mut().clear();
     }
 }