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

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

 // Copyright (c) 2012 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 <string>
 
 #include "base/guid.h"
 #include "base/macros.h"
 #include "base/strings/stringprintf.h"
 #include "build/build_config.h"
 #include "chrome/browser/sessions/session_service.h"
 #include "chrome/browser/sync/test/integration/passwords_helper.h"
 #include "chrome/browser/sync/test/integration/profile_sync_service_harness.h"
 #include "chrome/browser/sync/test/integration/sessions_helper.h"
 #include "chrome/browser/sync/test/integration/sync_test.h"
 #include "components/sync/engine/cycle/sync_cycle_snapshot.h"
 
-using passwords_helper::SetDecryptionPassphrase;
-using passwords_helper::SetEncryptionPassphrase;
 using sessions_helper::AwaitCheckForeignSessionsAgainst;
 using sessions_helper::CheckInitialState;
 using sessions_helper::DeleteForeignSession;
 using sessions_helper::GetLocalWindows;
 using sessions_helper::GetSessionData;
 using sessions_helper::OpenTabAndGetLocalWindows;
 using sessions_helper::ScopedWindowMap;
 using sessions_helper::SessionWindowMap;
 using sessions_helper::SyncedSessionVector;
 using sessions_helper::WindowsMatch;
@@ skipping 197 matching lines @@
   ASSERT_TRUE(GetClient(1)->AwaitMutualSyncCycleCompletion(GetClient(0)));
   ASSERT_FALSE(GetSessionData(1, &sessions1));
 
   // Client 0 becomes active again with a new tab.
   ASSERT_TRUE(OpenTabAndGetLocalWindows(0, GURL(kURL2), &client0_windows));
   ASSERT_TRUE(GetClient(0)->AwaitMutualSyncCycleCompletion(GetClient(1)));
   ASSERT_TRUE(GetSessionData(1, &sessions1));
   ASSERT_EQ(1U, sessions1.size());
   ASSERT_TRUE(WindowsMatch(sessions1[0]->windows, client0_windows));
 }