Fix TextTrackList method signatures

Author: armanbilge

api-reports/2_12.txt

@@ -24308,9 +24308,9 @@ TextTrackCueList[JC] def length: Int
 TextTrackList[JT] @JSBracketAccess def apply(index: Int): T
 TextTrackList[JT] def getTrackById(id: String): TextTrack
 TextTrackList[JT] def length: Int
-TextTrackList[JT] var onaddtrack: js.Function1[Event, Any]
+TextTrackList[JT] var onaddtrack: js.Function1[TrackEvent, Any]
 TextTrackList[JT] var onchange: js.Function1[Event, Any]
-TextTrackList[JT] var onremovetrack: js.Function1[Event, Any]
+TextTrackList[JT] var onremovetrack: js.Function1[TrackEvent, Any]
 TextTrackMode[JT]
 TextTrackMode[SO] val disabled: TextTrackMode
 TextTrackMode[SO] val hidden: TextTrackMode

api-reports/2_13.txt

@@ -24308,9 +24308,9 @@ TextTrackCueList[JC] def length: Int
 TextTrackList[JT] @JSBracketAccess def apply(index: Int): T
 TextTrackList[JT] def getTrackById(id: String): TextTrack
 TextTrackList[JT] def length: Int
-TextTrackList[JT] var onaddtrack: js.Function1[Event, Any]
+TextTrackList[JT] var onaddtrack: js.Function1[TrackEvent, Any]
 TextTrackList[JT] var onchange: js.Function1[Event, Any]
-TextTrackList[JT] var onremovetrack: js.Function1[Event, Any]
+TextTrackList[JT] var onremovetrack: js.Function1[TrackEvent, Any]
 TextTrackMode[JT]
 TextTrackMode[SO] val disabled: TextTrackMode
 TextTrackMode[SO] val hidden: TextTrackMode

src/main/scala/org/scalajs/dom/TextTrackList.scala

@@ -13,6 +13,6 @@ trait TextTrackList extends DOMList[TextTrack] {
   def getTrackById(id: String): TextTrack = js.native
 
   var onchange: js.Function1[Event, Any] = js.native
-  var onaddtrack: js.Function1[Event, Any] = js.native
-  var onremovetrack: js.Function1[Event, Any] = js.native
+  var onaddtrack: js.Function1[TrackEvent, Any] = js.native
+  var onremovetrack: js.Function1[TrackEvent, Any] = js.native
 }