[sync] Purge directory data when migrating to USS

components/sync/syncable/model_type.cc

Index: components/sync/syncable/model_type.cc
diff --git a/components/sync/syncable/model_type.cc b/components/sync/syncable/model_type.cc
index e1f4d49d127d3afc456ce0b151094b3d16c65c8c..bba10c5c71fa8abfaed607290d80888e81309505 100644
--- a/components/sync/syncable/model_type.cc
+++ b/components/sync/syncable/model_type.cc
@@ -429,25 +429,6 @@ ModelTypeSet ProtocolTypes() {
   return Difference(ModelTypeSet::All(), ProxyTypes());
 }
 
-ModelTypeSet UserTypes() {
-  // TODO(sync): We should be able to build the actual enumset's internal
-  // bitset value here at compile time, instead of makes a new one each time.
-  return ModelTypeSet::FromRange(FIRST_USER_MODEL_TYPE, LAST_USER_MODEL_TYPE);
-}
-
-ModelTypeSet UserSelectableTypes() {
-  return ModelTypeSet(BOOKMARKS, PREFERENCES, PASSWORDS, AUTOFILL, THEMES,
-                      TYPED_URLS, EXTENSIONS, APPS,
-#if BUILDFLAG(ENABLE_READING_LIST)
-                      READING_LIST,
-#endif
-                      PROXY_TABS);
-}
-
-bool IsUserSelectableType(ModelType model_type) {
-  return UserSelectableTypes().Has(model_type);
-}
-
 ModelTypeNameMap GetUserSelectableTypeNameMap() {
   ModelTypeNameMap type_names;
   ModelTypeSet type_set = UserSelectableTypes();
@@ -499,33 +480,12 @@ ModelTypeSet EncryptableUserTypes() {
   return encryptable_user_types;
 }
 
-ModelTypeSet PriorityUserTypes() {
-  return ModelTypeSet(DEVICE_INFO, PRIORITY_PREFERENCES);
-}
-
-ModelTypeSet ControlTypes() {
-  // TODO(sync): We should be able to build the actual enumset's internal
-  // bitset value here at compile time, instead of makes a new one each time.
-  return ModelTypeSet::FromRange(FIRST_CONTROL_MODEL_TYPE,
-                                 LAST_CONTROL_MODEL_TYPE);
-}
-
-ModelTypeSet ProxyTypes() {
-  return ModelTypeSet::FromRange(FIRST_PROXY_TYPE, LAST_PROXY_TYPE);
-}
-
-bool IsControlType(ModelType model_type) {
-  return ControlTypes().Has(model_type);
-}
-
 ModelTypeSet CoreTypes() {
   ModelTypeSet result = PriorityCoreTypes();
 
   // The following are low priority core types.
-  result.Put(SYNCED_NOTIFICATIONS);
-  result.Put(SYNCED_NOTIFICATION_APP_INFO);
-  result.Put(SUPERVISED_USER_SHARED_SETTINGS);
-  result.Put(SUPERVISED_USER_WHITELISTS);
+  result.PutAll({SYNCED_NOTIFICATIONS, SYNCED_NOTIFICATION_APP_INFO,
+                 SUPERVISED_USER_SHARED_SETTINGS, SUPERVISED_USER_WHITELISTS});
 
   return result;
 }
@@ -534,8 +494,7 @@ ModelTypeSet PriorityCoreTypes() {
   ModelTypeSet result = ControlTypes();
 
   // The following are non-control core types.
-  result.Put(SUPERVISED_USERS);
-  result.Put(SUPERVISED_USER_SETTINGS);
+  result.PutAll({SUPERVISED_USERS, SUPERVISED_USER_SETTINGS});
 
   return result;
 }