Standardize usage of virtual/override/final in chrome/browser/sync/

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

 // Copyright 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 "chrome/browser/sync/test/integration/sync_integration_test_util.h"
 
 #include "chrome/browser/sync/profile_sync_service.h"
 #include "chrome/browser/sync/test/integration/single_client_status_change_checker.h"
 #include "chrome/browser/sync/test/integration/updated_progress_marker_checker.h"
 
 namespace sync_integration_test_util {
 
 class PassphraseRequiredChecker : public SingleClientStatusChangeChecker {
  public:
   explicit PassphraseRequiredChecker(ProfileSyncService* service)
       : SingleClientStatusChangeChecker(service) {}
 
-  virtual bool IsExitConditionSatisfied() override {
+  bool IsExitConditionSatisfied() override {
     return service()->IsPassphraseRequired();
   }
 
-  virtual std::string GetDebugMessage() const override {
-    return "Passhrase Required";
-  }
+  std::string GetDebugMessage() const override { return "Passhrase Required"; }
 };
 
 class PassphraseAcceptedChecker : public SingleClientStatusChangeChecker {
  public:
   explicit PassphraseAcceptedChecker(ProfileSyncService* service)
       : SingleClientStatusChangeChecker(service) {}
 
-  virtual bool IsExitConditionSatisfied() override {
+  bool IsExitConditionSatisfied() override {
     return !service()->IsPassphraseRequired() &&
         service()->IsUsingSecondaryPassphrase();
   }
 
-  virtual std::string GetDebugMessage() const override {
-    return "Passhrase Accepted";
-  }
+  std::string GetDebugMessage() const override { return "Passhrase Accepted"; }
 };
 
 bool AwaitPassphraseRequired(ProfileSyncService* service) {
   PassphraseRequiredChecker checker(service);
   checker.Wait();
   return !checker.TimedOut();
 }
 
 bool AwaitPassphraseAccepted(ProfileSyncService* service) {
   PassphraseAcceptedChecker checker(service);
   checker.Wait();
   return !checker.TimedOut();
 }
 
 bool AwaitCommitActivityCompletion(ProfileSyncService* service) {
   UpdatedProgressMarkerChecker checker(service);
   checker.Wait();
   return !checker.TimedOut();
 }
 
 }  // namespace sync_integration_test_util