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

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

 // Copyright (c) 2014 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 "base/location.h"
 #include "base/macros.h"
 #include "base/run_loop.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/synchronization/waitable_event.h"
@@ skipping 74 matching lines @@
 // Verify that when the sync directory's backing store becomes corrupted, we
 // trigger an unrecoverable error and delete the database.
 //
 // If this test fails, see the definition of kNumEntriesRequiredForCorruption
 // for one possible cause.
 IN_PROC_BROWSER_TEST_F(SingleClientDirectorySyncTest,
                        DeleteDirectoryWhenCorrupted) {
   ASSERT_TRUE(SetupClients()) << "SetupClients() failed.";
   // Sync and wait for syncing to complete.
   ASSERT_TRUE(SetupSync()) << "SetupSync() failed.";
-  ASSERT_TRUE(AwaitCommitActivityCompletion(GetSyncService((0))));
+  ASSERT_TRUE(AwaitCommitActivityCompletion(GetSyncService(0)));
   ASSERT_TRUE(bookmarks_helper::ModelMatchesVerifier(0));
 
   // Flush the directory to the backing store and wait until the flush
   // completes.
   browser_sync::ProfileSyncService* sync_service = GetSyncService(0);
   sync_service->FlushDirectory();
   base::MessageLoop* sync_loop = sync_service->GetSyncLoopForTest();
   ASSERT_TRUE(WaitForExistingTasksOnLoop(sync_loop));
 
   // Now corrupt the database.
@@ skipping 26 matching lines @@
   SyncUnrecoverableErrorChecker checker(sync_service);
   checker.Wait();
   ASSERT_TRUE(!checker.TimedOut());
   ASSERT_TRUE(sync_service->HasUnrecoverableError());
 
   // Wait until the sync loop has processed any existing tasks and see that the
   // directory no longer exists.
   ASSERT_TRUE(WaitForExistingTasksOnLoop(sync_loop));
   ASSERT_FALSE(base::DirectoryExists(directory_path));
 }