SessionPlayerConnector: Use setter for ControlDispatcher

This brings SessionPlayerConnector in line with other
components that use a ControlDispatcher in the ExoPlayer
library, all of which have a setter.

PiperOrigin-RevId: 329665767

extensions/media2/src/androidTest/java/com/google/android/exoplayer2/ext/media2/SessionPlayerConnectorTest.java

@@ -185,17 +185,20 @@ public class SessionPlayerConnectorTest {
           }
         };
     SimpleExoPlayer simpleExoPlayer = null;
+    SessionPlayerConnector playerConnector = null;
     try {
       simpleExoPlayer =
           new SimpleExoPlayer.Builder(context)
               .setLooper(Looper.myLooper())
               .build();
-      try (SessionPlayerConnector player =
-          new SessionPlayerConnector(
-              simpleExoPlayer, new DefaultMediaItemConverter(), controlDispatcher)) {
-        assertPlayerResult(player.play(), RESULT_INFO_SKIPPED);
-      }
+      playerConnector =
+          new SessionPlayerConnector(simpleExoPlayer, new DefaultMediaItemConverter());
+      playerConnector.setControlDispatcher(controlDispatcher);
+      assertPlayerResult(playerConnector.play(), RESULT_INFO_SKIPPED);
     } finally {
+      if (playerConnector != null) {
+        playerConnector.close();
+      }
       if (simpleExoPlayer != null) {
         simpleExoPlayer.release();
       }

extensions/media2/src/main/java/com/google/android/exoplayer2/ext/media2/PlayerWrapper.java

@@ -27,6 +27,7 @@ import androidx.media2.common.MediaMetadata;
 import androidx.media2.common.SessionPlayer;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.ControlDispatcher;
+import com.google.android.exoplayer2.DefaultControlDispatcher;
 import com.google.android.exoplayer2.ExoPlaybackException;
 import com.google.android.exoplayer2.MediaItem;
 import com.google.android.exoplayer2.PlaybackParameters;
@@ -108,7 +109,6 @@ import java.util.List;
 
   private final Player player;
   private final MediaItemConverter mediaItemConverter;
-  private final ControlDispatcher controlDispatcher;
   private final ComponentListener componentListener;
 
   @Nullable private MediaMetadata playlistMetadata;
@@ -117,6 +117,7 @@ import java.util.List;
   private final List<androidx.media2.common.MediaItem> media2Playlist;
   private final List<MediaItem> exoPlayerPlaylist;
 
+  private ControlDispatcher controlDispatcher;
   private boolean prepared;
   private boolean rebuffering;
   private int currentWindowIndex;
@@ -128,18 +129,13 @@ import java.util.List;
    * @param listener A {@link Listener}.
    * @param player The {@link Player}.
    * @param mediaItemConverter The {@link MediaItemConverter}.
-   * @param controlDispatcher A {@link ControlDispatcher}.
    */
-  public PlayerWrapper(
-      Listener listener,
-      Player player,
-      MediaItemConverter mediaItemConverter,
-      ControlDispatcher controlDispatcher) {
+  public PlayerWrapper(Listener listener, Player player, MediaItemConverter mediaItemConverter) {
     this.listener = listener;
     this.player = player;
     this.mediaItemConverter = mediaItemConverter;
-    this.controlDispatcher = controlDispatcher;
 
+    controlDispatcher = new DefaultControlDispatcher();
     componentListener = new ComponentListener();
     player.addListener(componentListener);
     @Nullable Player.AudioComponent audioComponent = player.getAudioComponent();
@@ -160,6 +156,10 @@ import java.util.List;
     updatePlaylist(player.getCurrentTimeline());
   }
 
+  public void setControlDispatcher(ControlDispatcher controlDispatcher) {
+    this.controlDispatcher = controlDispatcher;
+  }
+
   public boolean setMediaItem(androidx.media2.common.MediaItem media2MediaItem) {
     return setPlaylist(Collections.singletonList(media2MediaItem), /* metadata= */ null);
   }

extensions/media2/src/main/java/com/google/android/exoplayer2/ext/media2/SessionPlayerConnector.java

@@ -92,7 +92,7 @@ public final class SessionPlayerConnector extends SessionPlayer {
    * @param player The player to wrap.
    */
   public SessionPlayerConnector(Player player) {
-    this(player, new DefaultMediaItemConverter(), new DefaultControlDispatcher());
+    this(player, new DefaultMediaItemConverter());
   }
 
   /**
@@ -100,22 +100,28 @@ public final class SessionPlayerConnector extends SessionPlayer {
    *
    * @param player The player to wrap.
    * @param mediaItemConverter The {@link MediaItemConverter}.
-   * @param controlDispatcher The {@link ControlDispatcher}.
    */
-  public SessionPlayerConnector(
-      Player player, MediaItemConverter mediaItemConverter, ControlDispatcher controlDispatcher) {
+  public SessionPlayerConnector(Player player, MediaItemConverter mediaItemConverter) {
     Assertions.checkNotNull(player);
     Assertions.checkNotNull(mediaItemConverter);
-    Assertions.checkNotNull(controlDispatcher);
 
     state = PLAYER_STATE_IDLE;
     taskHandler = new Handler(player.getApplicationLooper());
     taskHandlerExecutor = (runnable) -> postOrRun(taskHandler, runnable);
-    ExoPlayerWrapperListener playerListener = new ExoPlayerWrapperListener();
-    this.player = new PlayerWrapper(playerListener, player, mediaItemConverter, controlDispatcher);
+
+    this.player = new PlayerWrapper(new ExoPlayerWrapperListener(), player, mediaItemConverter);
     playerCommandQueue = new PlayerCommandQueue(this.player, taskHandler);
   }
 
+  /**
+   * Sets the {@link ControlDispatcher}.
+   *
+   * @param controlDispatcher The {@link ControlDispatcher}.
+   */
+  public void setControlDispatcher(ControlDispatcher controlDispatcher) {
+    player.setControlDispatcher(controlDispatcher);
+  }
+
   @Override
   public ListenableFuture<PlayerResult> play() {
     return playerCommandQueue.addCommand(