Deprecate JobDispatcherScheduler

PiperOrigin-RevId: 249250184

extensions/jobdispatcher/README.md

 # ExoPlayer Firebase JobDispatcher extension #
 
+**DEPRECATED** Please use [WorkManager extension][] or [`PlatformScheduler`]. 
+
 This extension provides a Scheduler implementation which uses [Firebase JobDispatcher][].
 
+[WorkManager extension]: https://github.com/google/ExoPlayer/blob/release-v2/extensions/workmanager/README.md
+[`PlatformScheduler`]: https://github.com/google/ExoPlayer/blob/release-v2/library/core/src/main/java/com/google/android/exoplayer2/scheduler/PlatformScheduler.java
 [Firebase JobDispatcher]: https://github.com/firebase/firebase-jobdispatcher-android
 
 ## Getting the extension ##

extensions/jobdispatcher/src/main/java/com/google/android/exoplayer2/ext/jobdispatcher/JobDispatcherScheduler.java

@@ -54,7 +54,10 @@ import com.google.android.exoplayer2.util.Util;
  *
  * @see <a
  *     href="https://developers.google.com/android/reference/com/google/android/gms/common/GoogleApiAvailability#isGooglePlayServicesAvailable(android.content.Context)">GoogleApiAvailability</a>
+ * @deprecated Use com.google.android.exoplayer2.ext.workmanager.WorkManagerScheduler or {@link
+ *     com.google.android.exoplayer2.scheduler.PlatformScheduler}.
  */
+@Deprecated
 public final class JobDispatcherScheduler implements Scheduler {
 
   private static final boolean DEBUG = false;