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

chrome/browser/extensions/api/file_system/entry_watcher_service.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_FILE_SYSTEM_ENTRY_WATCHER_SERVICE_H_
 #define CHROME_BROWSER_EXTENSIONS_API_FILE_SYSTEM_ENTRY_WATCHER_SERVICE_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 25 matching lines @@
  public:
   typedef base::Callback<
       void(const std::string& extension_id, scoped_ptr<Event> event)>
       DispatchEventImplCallback;
 
   typedef base::Callback<storage::FileSystemContext*(
       const std::string& extension_id,
       content::BrowserContext* context)> GetFileSystemContextImplCallback;
 
   explicit EntryWatcherService(content::BrowserContext* context);
-  virtual ~EntryWatcherService();
+  ~EntryWatcherService() override;
 
   // Watches a directory. Only one watcher can be set per the same |url| and
   // |extension_id|.
   void WatchDirectory(const std::string& extension_id,
                       const storage::FileSystemURL& url,
                       bool recursive,
                       const storage::WatcherManager::StatusCallback& callback);
 
   // Unwatches an entry (file or directory).
   void UnwatchEntry(const std::string& extension_id,
                     const storage::FileSystemURL& url,
                     const storage::WatcherManager::StatusCallback& callback);
 
   std::vector<storage::FileSystemURL> GetWatchedEntries(
       const std::string& extension_id);
 
   // storage::WatcherManager::Observer overrides.
-  virtual void OnEntryChanged(const storage::FileSystemURL& url) override;
-  virtual void OnEntryRemoved(const storage::FileSystemURL& url) override;
+  void OnEntryChanged(const storage::FileSystemURL& url) override;
+  void OnEntryRemoved(const storage::FileSystemURL& url) override;
 
   // Sets a custom dispatcher for tests in order to be able to verify dispatched
   // events.
   void SetDispatchEventImplForTesting(
       const DispatchEventImplCallback& callback);
 
   // Sets a custom context getter for tests in order to inject a testing
   // file system context implementation.
   void SetGetFileSystemContextImplForTesting(
       const GetFileSystemContextImplCallback& callback);
@@ skipping 43 matching lines @@
   ScopedObserver<storage::WatcherManager, storage::WatcherManager::Observer>
       observing_;
   base::WeakPtrFactory<EntryWatcherService> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(EntryWatcherService);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_FILE_SYSTEM_ENTRY_WATCHER_SERVICE_H_