Add Settings Slice Whitelist key

Bug: 79779103
Test: None - only a flag.
Change-Id: I764f2fddf05bf2b9df4e633c7f6c6c7e781c1149
Merged-In: I794159db4ff8aba7b6dcd91e13a984db40da47e7
diff --git a/core/tests/coretests/src/android/provider/SettingsBackupTest.java b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
index 5b7fc6e..d1b047b 100644
--- a/core/tests/coretests/src/android/provider/SettingsBackupTest.java
+++ b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
@@ -132,6 +132,7 @@
                     Settings.Global.BLE_SCAN_LOW_LATENCY_WINDOW_MS,
                     Settings.Global.BLE_SCAN_LOW_LATENCY_INTERVAL_MS,
                     Settings.Global.BLE_SCAN_BACKGROUND_MODE,
+                    Settings.Global.BLOCKED_SLICES,
                     Settings.Global.BLOCKING_HELPER_DISMISS_TO_VIEW_RATIO_LIMIT,
                     Settings.Global.BLOCKING_HELPER_STREAK_LIMIT,
                     Settings.Global.BLUETOOTH_A2DP_SINK_PRIORITY_PREFIX,