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

chrome/browser/sync_file_system/local/canned_syncable_file_system.h

 // Copyright 2013 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_SYNC_FILE_SYSTEM_LOCAL_CANNED_SYNCABLE_FILE_SYSTEM_H_
 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_CANNED_SYNCABLE_FILE_SYSTEM_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 57 matching lines @@
   enum QuotaMode {
     QUOTA_ENABLED,
     QUOTA_DISABLED,
   };
 
   CannedSyncableFileSystem(
       const GURL& origin,
       leveldb::Env* env_override,
       const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner,
       const scoped_refptr<base::SingleThreadTaskRunner>& file_task_runner);
-  virtual ~CannedSyncableFileSystem();
+  ~CannedSyncableFileSystem() override;
 
   // SetUp must be called before using this instance.
   void SetUp(QuotaMode quota_mode);
 
   // TearDown must be called before destructing this instance.
   void TearDown();
 
   // Creates a FileSystemURL for the given (utf8) path string.
   storage::FileSystemURL URL(const std::string& path) const;
 
@@ skipping 63 matching lines @@
   // ChangeTracker related methods. They run on file task runner.
   void GetChangedURLsInTracker(storage::FileSystemURLSet* urls);
   void ClearChangeForURLInTracker(const storage::FileSystemURL& url);
   void GetChangesForURLInTracker(const storage::FileSystemURL& url,
                                  FileChangeList* changes);
 
   SyncFileSystemBackend* backend();
   storage::FileSystemOperationRunner* operation_runner();
 
   // LocalFileSyncStatus::Observer overrides.
-  virtual void OnSyncEnabled(const storage::FileSystemURL& url) override;
-  virtual void OnWriteEnabled(const storage::FileSystemURL& url) override;
+  void OnSyncEnabled(const storage::FileSystemURL& url) override;
+  void OnWriteEnabled(const storage::FileSystemURL& url) override;
 
   // Operation methods body.
   // They can be also called directly if the caller is already on IO thread.
   void DoOpenFileSystem(const OpenFileSystemCallback& callback);
   void DoCreateDirectory(const storage::FileSystemURL& url,
                          const StatusCallback& callback);
   void DoCreateFile(const storage::FileSystemURL& url,
                     const StatusCallback& callback);
   void DoCopy(const storage::FileSystemURL& src_url,
               const storage::FileSystemURL& dest_url,
@@ skipping 70 matching lines @@
   bool is_filesystem_opened_;  // Should be accessed only on the IO thread.
 
   scoped_refptr<ObserverList> sync_status_observers_;
 
   DISALLOW_COPY_AND_ASSIGN(CannedSyncableFileSystem);
 };
 
 }  // namespace sync_file_system
 
 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_CANNED_SYNCABLE_FILE_SYSTEM_H_