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

chrome/browser/history/history_service.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.
 
 // The history system runs on a background thread so that potentially slow
 // database operations don't delay the browser. This backend processing is
 // represented by HistoryBackend. The HistoryService's job is to dispatch to
 // that thread.
 //
 // Main thread                       History thread
@@ skipping 84 matching lines @@
 
 // Extract history::URLRows into GURLs for VisitedLinkMaster.
 class URLIteratorFromURLRows
     : public visitedlink::VisitedLinkMaster::URLIterator {
  public:
   explicit URLIteratorFromURLRows(const history::URLRows& url_rows)
       : itr_(url_rows.begin()),
         end_(url_rows.end()) {
   }
 
-  virtual const GURL& NextURL() override {
-    return (itr_++)->url();
-  }
+  const GURL& NextURL() override { return (itr_++)->url(); }
 
-  virtual bool HasNextURL() const override {
-    return itr_ != end_;
-  }
+  bool HasNextURL() const override { return itr_ != end_; }
 
  private:
   history::URLRows::const_iterator itr_;
   history::URLRows::const_iterator end_;
 
   DISALLOW_COPY_AND_ASSIGN(URLIteratorFromURLRows);
 };
 
 // Callback from WebHistoryService::ExpireWebHistory().
 void ExpireWebHistoryComplete(bool success) {
@@ skipping 13 matching lines @@
  public:
   BackendDelegate(
       const base::WeakPtr<HistoryService>& history_service,
       const scoped_refptr<base::SequencedTaskRunner>& service_task_runner,
       Profile* profile)
       : history_service_(history_service),
         service_task_runner_(service_task_runner),
         profile_(profile) {
   }
 
-  virtual void NotifyProfileError(sql::InitStatus init_status) override {
+  void NotifyProfileError(sql::InitStatus init_status) override {
     // Send to the history service on the main thread.
     service_task_runner_->PostTask(
         FROM_HERE,
         base::Bind(&HistoryService::NotifyProfileError, history_service_,
                    init_status));
   }
 
-  virtual void SetInMemoryBackend(
+  void SetInMemoryBackend(
       scoped_ptr<history::InMemoryHistoryBackend> backend) override {
     // Send the backend to the history service on the main thread.
     service_task_runner_->PostTask(
         FROM_HERE,
         base::Bind(&HistoryService::SetInMemoryBackend, history_service_,
                    base::Passed(&backend)));
   }
 
-  virtual void NotifyAddVisit(const history::BriefVisitInfo& info) override {
+  void NotifyAddVisit(const history::BriefVisitInfo& info) override {
     service_task_runner_->PostTask(
         FROM_HERE,
         base::Bind(&HistoryService::NotifyAddVisit, history_service_, info));
   }
 
-  virtual void NotifyFaviconChanged(const std::set<GURL>& urls) override {
+  void NotifyFaviconChanged(const std::set<GURL>& urls) override {
     // Send the notification to the history service on the main thread.
     service_task_runner_->PostTask(
         FROM_HERE,
         base::Bind(
             &HistoryService::NotifyFaviconChanged, history_service_, urls));
   }
 
-  virtual void NotifyURLVisited(ui::PageTransition transition,
-                                const history::URLRow& row,
-                                const history::RedirectList& redirects,
-                                base::Time visit_time) override {
+  void NotifyURLVisited(ui::PageTransition transition,
+                        const history::URLRow& row,
+                        const history::RedirectList& redirects,
+                        base::Time visit_time) override {
     service_task_runner_->PostTask(FROM_HERE,
                                    base::Bind(&HistoryService::NotifyURLVisited,
                                               history_service_,
                                               transition,
                                               row,
                                               redirects,
                                               visit_time));
   }
 
-  virtual void BroadcastNotifications(
+  void BroadcastNotifications(
       int type,
       scoped_ptr<history::HistoryDetails> details) override {
     // Send the notification on the history thread.
     if (content::NotificationService::current()) {
       content::Details<history::HistoryDetails> det(details.get());
       content::NotificationService::current()->Notify(
           type, content::Source<Profile>(profile_), det);
     }
     // Send the notification to the history service on the main thread.
     service_task_runner_->PostTask(
         FROM_HERE,
         base::Bind(&HistoryService::BroadcastNotificationsHelper,
                    history_service_, type, base::Passed(&details)));
   }
 
-  virtual void DBLoaded() override {
+  void DBLoaded() override {
     service_task_runner_->PostTask(
         FROM_HERE,
         base::Bind(&HistoryService::OnDBLoaded, history_service_));
   }
 
  private:
   const base::WeakPtr<HistoryService> history_service_;
   const scoped_refptr<base::SequencedTaskRunner> service_task_runner_;
   Profile* const profile_;
 };
@@ skipping 1048 matching lines @@
     const HistoryService::OnFaviconChangedCallback& callback) {
   DCHECK(thread_checker_.CalledOnValidThread());
   return favicon_changed_callback_list_.Add(callback);
 }
 
 void HistoryService::NotifyFaviconChanged(
     const std::set<GURL>& changed_favicons) {
   DCHECK(thread_checker_.CalledOnValidThread());
   favicon_changed_callback_list_.Notify(changed_favicons);
 }