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

chrome/browser/sync_file_system/local/syncable_file_operation_runner.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_SYNCABLE_FILE_OPERATION_RUNNER_H_
 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_SYNCABLE_FILE_OPERATION_RUNNER_H_
 
 #include <list>
 #include <vector>
 
@@ skipping 36 matching lines @@
     friend class SyncableFileOperationRunner;
     bool IsRunnable(LocalFileSyncStatus* status) const;
     void Start(LocalFileSyncStatus* status);
     static void CancelAndDelete(Task* task);
 
     DISALLOW_COPY_AND_ASSIGN(Task);
   };
 
   SyncableFileOperationRunner(int64 max_inflight_tasks,
                               LocalFileSyncStatus* sync_status);
-  virtual ~SyncableFileOperationRunner();
+  ~SyncableFileOperationRunner() override;
 
   // 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;
 
   // Runs the given |task| if no sync operation is running on any of
   // its target_paths(). This also runs pending tasks that have become
   // runnable (before running the given operation).
   // If there're ongoing sync tasks on the target_paths this method
   // just queues up the |task|.
   // Pending tasks are cancelled when this class is destructed.
   void PostOperationTask(scoped_ptr<Task> task);
 
   // Runs a next runnable task (if there's any).
@@ skipping 23 matching lines @@
 
   const int64 max_inflight_tasks_;
   int64 num_inflight_tasks_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncableFileOperationRunner);
 };
 
 }  // namespace sync_file_system
 
 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_SYNCABLE_FILE_OPERATION_RUNNER_H_