Propagate LoadErrorHandlingPolicy to SingleSampleMediaSource.Factory

I think this was missed when integrating DefaultMediaSourceFactory with
SingleSampleMediaSource.Factory in
https://github.com/google/ExoPlayer/commit/315ba6f324b03ef651773a3bdb43386dcb1281ca

Issue: #8430
PiperOrigin-RevId: 350759580

RELEASENOTES.md

@@ -7,6 +7,11 @@
         ([#8349](https://github.com/google/ExoPlayer/issues/8349)).
     *   Fix `MediaCodecRenderer` issue where empty streams would fail to play in
         bypass mode ([#8374](https://github.com/google/ExoPlayer/issues/8374)).
+    *   Fix propagation of `LoadErrorHandlingPolicy` from
+        `DefaultMediaSourceFactory` into `SingleSampleMediaSource.Factory` when
+        creating subtitle media sources from
+        `MediaItem.playbackProperties.subtitles`
+        ([#8430](https://github.com/google/ExoPlayer/issues/8430)).
 *   UI:
     *   Fix issue where pop-up menus belonging to `StyledPlayerControlView`
         would not be dismissed when tapping outside of the menu area or pressing

library/core/src/main/java/com/google/android/exoplayer2/source/DefaultMediaSourceFactory.java

@@ -251,7 +251,8 @@ public final class DefaultMediaSourceFactory implements MediaSourceFactory {
       MediaSource[] mediaSources = new MediaSource[subtitles.size() + 1];
       mediaSources[0] = mediaSource;
       SingleSampleMediaSource.Factory singleSampleSourceFactory =
-          new SingleSampleMediaSource.Factory(dataSourceFactory);
+          new SingleSampleMediaSource.Factory(dataSourceFactory)
+              .setLoadErrorHandlingPolicy(loadErrorHandlingPolicy);
       for (int i = 0; i < subtitles.size(); i++) {
         mediaSources[i + 1] =
             singleSampleSourceFactory.createMediaSource(