Face and fingerprint unlock strings for private space

Recordings:
b/326399895#comment10

Bug: 326399895
Test: Manual
Change-Id: I9f4449439639c93a10475333a91059f855bce07b

src/com/android/settings/Utils.java

@@ -1400,6 +1400,16 @@ public final class Utils extends com.android.settingslib.Utils {
                 && userManager.isQuietModeEnabled(userHandle);
     }
 
+    /**
+     * Returns true if the userId is a private profile, false otherwise.
+     */
+    public static boolean isPrivateProfile(int userId, @NonNull Context context) {
+        final UserManager userManager = context.getSystemService(UserManager.class);
+        UserInfo userInfo = userManager.getUserInfo(userId);
+        return Flags.allowPrivateProfile() && android.multiuser.Flags.enablePrivateSpaceFeatures()
+                && userInfo.isPrivateProfile();
+    }
+
     /**
      * Enable new edge to edge feature.
      *