Add auto-granting of slice permissions

Allow things that can read the index to access slices too.

Test: existing tests unaffected
Bug: 77313888
Change-Id: I54c4b89eefb4354aa6b7dcafb7ac09dc96cbdbeb

src/com/android/settings/slices/SettingsSliceProvider.java

@@ -16,6 +16,8 @@
 
 package com.android.settings.slices;
 
+import static android.Manifest.permission.READ_SEARCH_INDEXABLES;
+
 import android.app.PendingIntent;
 import android.app.slice.SliceManager;
 import android.content.ContentResolver;
@@ -113,6 +115,10 @@ public class SettingsSliceProvider extends SliceProvider {
     @VisibleForTesting
     Map<Uri, SliceData> mSliceDataCache;
 
+    public SettingsSliceProvider() {
+        super(READ_SEARCH_INDEXABLES);
+    }
+
     @Override
     public boolean onCreateSliceProvider() {
         mSlicesDatabaseAccessor = new SlicesDatabaseAccessor(getContext());