Use ProjectOperations for permission updates

Change-Id: Iab3a76767b113b4e30e4da3835fe58a1d1039e2b
diff --git a/javatests/com/google/gerrit/plugins/checks/acceptance/api/QueryPendingChecksIT.java b/javatests/com/google/gerrit/plugins/checks/acceptance/api/QueryPendingChecksIT.java
index 3586930..5bfbee0 100644
--- a/javatests/com/google/gerrit/plugins/checks/acceptance/api/QueryPendingChecksIT.java
+++ b/javatests/com/google/gerrit/plugins/checks/acceptance/api/QueryPendingChecksIT.java
@@ -15,6 +15,8 @@
 package com.google.gerrit.plugins.checks.acceptance.api;
 
 import static com.google.common.truth.Truth.assertThat;
+import static com.google.gerrit.acceptance.testsuite.project.TestProjectUpdate.allow;
+import static com.google.gerrit.acceptance.testsuite.project.TestProjectUpdate.block;
 import static com.google.gerrit.plugins.checks.testing.PendingChecksInfoSubject.assertThat;
 import static com.google.gerrit.server.group.SystemGroupBackend.REGISTERED_USERS;
 import static com.google.gerrit.testing.GerritJUnit.assertThrows;
@@ -33,7 +35,6 @@
 import com.google.gerrit.plugins.checks.api.PendingCheckInfo;
 import com.google.gerrit.plugins.checks.api.PendingChecksInfo;
 import com.google.gerrit.reviewdb.client.PatchSet;
-import com.google.gerrit.server.project.testing.Util;
 import com.google.gerrit.testing.TestTimeUtil;
 import com.google.gson.reflect.TypeToken;
 import com.google.inject.Inject;
@@ -579,11 +580,12 @@
   @Test
   public void pendingChecksDontIncludeChecksForNonVisibleChanges() throws Exception {
     // restrict project visibility so that it is only visible to administrators
-    try (ProjectConfigUpdate u = updateProject(project)) {
-      Util.allow(u.getConfig(), Permission.READ, adminGroupUuid(), "refs/*");
-      Util.block(u.getConfig(), Permission.READ, REGISTERED_USERS, "refs/*");
-      u.save();
-    }
+    projectOperations
+        .project(project)
+        .forUpdate()
+        .add(allow(Permission.READ).ref("refs/*").group(adminGroupUuid()))
+        .add(block(Permission.READ).ref("refs/*").group(REGISTERED_USERS))
+        .update();
 
     CheckerUuid checkerUuid = checkerOperations.newChecker().repository(project).create();
     checkOperations