Add filtering to notification channel settings

Allow apps that are launching this page to specify targeted subsets of
settings that should be shown.

Test: settings notification robotests
Bug: 177246841
Change-Id: Ib491c43f1861a9775e3b25f39134cdbe105a7ff8

src/com/android/settings/notification/app/InvalidConversationPreferenceController.java

@@ -47,9 +47,17 @@ public class InvalidConversationPreferenceController extends NotificationPrefere
         if (mAppRow.banned) {
             return false;
         }
+        if (mPreferenceFilter != null && !isIncludedInFilter()) {
+            return false;
+        }
         return mBackend.isInInvalidMsgState(mAppRow.pkg, mAppRow.uid);
     }
 
+    @Override
+    boolean isIncludedInFilter() {
+        return mPreferenceFilter.contains(NotificationChannel.EDIT_CONVERSATION);
+    }
+
     @Override
     public void updateState(Preference preference) {
         if (mAppRow == null) {