diff --git a/api/module-lib-current.txt b/api/module-lib-current.txt
index c12d897b9d726..4f0e2cd3c768d 100644
--- a/api/module-lib-current.txt
+++ b/api/module-lib-current.txt
@@ -66,6 +66,8 @@ package android.media.session {
     method public boolean dispatchMediaKeyEventAsSystemService(@NonNull android.media.session.MediaSession.Token, @NonNull android.view.KeyEvent);
     method public void dispatchVolumeKeyEventAsSystemService(@NonNull android.view.KeyEvent, int);
     method public void dispatchVolumeKeyEventAsSystemService(@NonNull android.media.session.MediaSession.Token, @NonNull android.view.KeyEvent);
+    field public static final int RESULT_MEDIA_KEY_HANDLED = 1; // 0x1
+    field public static final int RESULT_MEDIA_KEY_NOT_HANDLED = 0; // 0x0
   }
 
 }
diff --git a/media/java/android/media/session/MediaSessionManager.java b/media/java/android/media/session/MediaSessionManager.java
index 20006934ee46a..9494295e4bd9e 100644
--- a/media/java/android/media/session/MediaSessionManager.java
+++ b/media/java/android/media/session/MediaSessionManager.java
@@ -68,16 +68,19 @@ public final class MediaSessionManager {
     private static final String TAG = "SessionManager";
 
     /**
-     * Used by IOnMediaKeyListener to indicate that the media key event isn't handled.
+     * Used to indicate that the media key event isn't handled.
      * @hide
      */
+    @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
     public static final int RESULT_MEDIA_KEY_NOT_HANDLED = 0;
 
     /**
-     * Used by IOnMediaKeyListener to indicate that the media key event is handled.
+     * Used to indicate that the media key event is handled.
      * @hide
      */
+    @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
     public static final int RESULT_MEDIA_KEY_HANDLED = 1;
+
     private final ISessionManager mService;
     private final OnMediaKeyEventDispatchedListenerStub mOnMediaKeyEventDispatchedListenerStub =
             new OnMediaKeyEventDispatchedListenerStub();
diff --git a/non-updatable-api/module-lib-current.txt b/non-updatable-api/module-lib-current.txt
index f7f42d0a59562..63b98cb5bd6a9 100644
--- a/non-updatable-api/module-lib-current.txt
+++ b/non-updatable-api/module-lib-current.txt
@@ -66,6 +66,8 @@ package android.media.session {
     method public boolean dispatchMediaKeyEventAsSystemService(@NonNull android.media.session.MediaSession.Token, @NonNull android.view.KeyEvent);
     method public void dispatchVolumeKeyEventAsSystemService(@NonNull android.view.KeyEvent, int);
     method public void dispatchVolumeKeyEventAsSystemService(@NonNull android.media.session.MediaSession.Token, @NonNull android.view.KeyEvent);
+    field public static final int RESULT_MEDIA_KEY_HANDLED = 1; // 0x1
+    field public static final int RESULT_MEDIA_KEY_NOT_HANDLED = 0; // 0x0
   }
 
 }