[Offload] Follow up change for ag/20546515

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Bug: 260002423
Ignore-AOSP-First: nearby_not_in_aosp_yet
Change-Id: Ia30232fca98f6f6baee8482b64931d13688a5f3b
diff --git a/nearby/framework/java/android/nearby/NearbyManager.java b/nearby/framework/java/android/nearby/NearbyManager.java
index 6d6b69a..feed71b 100644
--- a/nearby/framework/java/android/nearby/NearbyManager.java
+++ b/nearby/framework/java/android/nearby/NearbyManager.java
@@ -103,6 +103,8 @@
         mService = service;
     }
 
+    // This can be null when NearbyDeviceParcelable field not set for Presence device
+    // or the scan type is not recognized.
     @Nullable
     private static NearbyDevice toClientNearbyDevice(
             NearbyDeviceParcelable nearbyDeviceParcelable,