MediaSession2 API set for audio focus handling

MediaPlayerInterface has:
- setAudioAttributes
- getAudioAttributes

MediaSession2 has:
- setAudioFocusRequest

Test: build
Bug: 72529899
Change-Id: I3b200198bc44c568d3c06583c23d9918c6380e32

media/java/android/media/MediaPlayerInterface.java

@@ -16,6 +16,8 @@
 
 package android.media;
 
+import android.annotation.NonNull;
+import android.annotation.Nullable;
 import android.media.MediaSession2.PlaylistParams;
 
 import java.util.List;
@@ -48,6 +50,18 @@ public interface MediaPlayerInterface {
     void rewind();
 
     PlaybackState2 getPlaybackState();
+
+    /**
+     * Sets the {@link AudioAttributes} to be used during the playback of the media.
+     *
+     * @param attributes non-null <code>AudioAttributes</code>.
+     */
+    void setAudioAttributes(@NonNull AudioAttributes attributes);
+
+    /**
+     * Returns AudioAttributes that media player has.
+     */
+    @Nullable
     AudioAttributes getAudioAttributes();
 
     void setPlaylist(List<MediaItem2> item, PlaylistParams param);

media/java/android/media/MediaSession2.java

@@ -1079,15 +1079,6 @@ public class MediaSession2 implements AutoCloseable {
         return mProvider.getConnectedControllers_impl();
     }
 
-    /**
-     * Sets the {@link AudioAttributes} to be used during the playback of the video.
-     *
-     * @param attributes non-null <code>AudioAttributes</code>.
-     */
-    public void setAudioAttributes(@NonNull AudioAttributes attributes) {
-        mProvider.setAudioAttributes_impl(attributes);
-    }
-
     /**
      * Sets which type of audio focus will be requested during the playback, or configures playback
      * to not request audio focus. Valid values for focus requests are

media/java/android/media/update/MediaSession2Provider.java

@@ -46,7 +46,6 @@ public interface MediaSession2Provider extends TransportControlProvider {
     SessionToken2 getToken_impl();
     List<ControllerInfo> getConnectedControllers_impl();
     void setCustomLayout_impl(ControllerInfo controller, List<CommandButton> layout);
-    void setAudioAttributes_impl(AudioAttributes attributes);
     void setAudioFocusRequest_impl(int focusGain);
 
     void setAllowedCommands_impl(ControllerInfo controller, CommandGroup commands);