[Sync] Removed passphrase helper methods, removed ((n)) pattern, and fixed lint violations.

chrome/browser/sync/test/integration/single_client_arc_package_sync_test.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sync/test/integration/sync_arc_package_helper.h"
 #include "chrome/browser/sync/test/integration/sync_integration_test_util.h"
 #include "chrome/browser/sync/test/integration/sync_test.h"
 #include "chrome/browser/ui/app_list/arc/arc_package_syncable_service.h"
 
@@ skipping 38 matching lines @@
  private:
   SyncArcPackageHelper* sync_helper_;
 
   DISALLOW_COPY_AND_ASSIGN(SingleClientArcPackageSyncTest);
 };
 
 IN_PROC_BROWSER_TEST_F(SingleClientArcPackageSyncTest, ArcPackageEmpty) {
   ASSERT_TRUE(SetupSync());
 
   ASSERT_TRUE(AllProfilesHaveSameArcPackageDetails());
-
 }
 
 IN_PROC_BROWSER_TEST_F(SingleClientArcPackageSyncTest,
                        ArcPackageInstallSomePackages) {
   ASSERT_TRUE(SetupSync());
 
   constexpr size_t kNumPackages = 5;
   for (size_t i = 0; i < kNumPackages; ++i) {
     sync_helper()->InstallPackageWithIndex(GetProfile(0), i);
     sync_helper()->InstallPackageWithIndex(verifier(), i);
   }
 
-  ASSERT_TRUE(AwaitCommitActivityCompletion(GetSyncService((0))));
+  ASSERT_TRUE(AwaitCommitActivityCompletion(GetSyncService(0)));
   ASSERT_TRUE(AllProfilesHaveSameArcPackageDetails());
 }
 
 }  // namespace arc