Handle special case slices

Create a handler for any slice that doesn't include anything
from a PreferenceController.

Test: robotests
Change-Id: If23947152d61877537d0cac6240e96b9ab977bce
Bug: 80263568

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

@@ -13,23 +13,32 @@ public class SlicesFeatureProviderImpl implements SlicesFeatureProvider {
 
     private SlicesIndexer mSlicesIndexer;
     private SliceDataConverter mSliceDataConverter;
+    private CustomSliceManager mCustomSliceManager;
 
     @Override
     public SlicesIndexer getSliceIndexer(Context context) {
         if (mSlicesIndexer == null) {
-            mSlicesIndexer = new SlicesIndexer(context);
+            mSlicesIndexer = new SlicesIndexer(context.getApplicationContext());
         }
         return mSlicesIndexer;
     }
 
     @Override
     public SliceDataConverter getSliceDataConverter(Context context) {
-        if(mSliceDataConverter == null) {
+        if (mSliceDataConverter == null) {
             mSliceDataConverter = new SliceDataConverter(context.getApplicationContext());
         }
         return mSliceDataConverter;
     }
 
+    @Override
+    public CustomSliceManager getCustomSliceManager(Context context) {
+        if (mCustomSliceManager == null) {
+            mCustomSliceManager = new CustomSliceManager(context.getApplicationContext());
+        }
+        return mCustomSliceManager;
+    }
+
     @Override
     public void indexSliceDataAsync(Context context) {
         SlicesIndexer indexer = getSliceIndexer(context);