Standardize usage of virtual/override/final specifiers.

components/storage_monitor/media_transfer_protocol_device_observer_linux.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 COMPONENTS_STORAGE_MONITOR_MEDIA_TRANSFER_PROTOCOL_DEVICE_OBSERVER_LINUX_H_
 #define COMPONENTS_STORAGE_MONITOR_MEDIA_TRANSFER_PROTOCOL_DEVICE_OBSERVER_LINUX_H_
 
 #include <map>
 #include <string>
 
@@ skipping 19 matching lines @@
     base::string16* product_name);
 
 // Helper class to send MTP storage attachment and detachment events to
 // StorageMonitor.
 class MediaTransferProtocolDeviceObserverLinux
     : public device::MediaTransferProtocolManager::Observer {
  public:
   MediaTransferProtocolDeviceObserverLinux(
       StorageMonitor::Receiver* receiver,
       device::MediaTransferProtocolManager* mtp_manager);
-  virtual ~MediaTransferProtocolDeviceObserverLinux();
+  ~MediaTransferProtocolDeviceObserverLinux() override;
 
   // Finds the storage that contains |path| and populates |storage_info|.
   // Returns false if unable to find the storage.
   bool GetStorageInfoForPath(const base::FilePath& path,
                              StorageInfo* storage_info) const;
 
   void EjectDevice(const std::string& device_id,
                    base::Callback<void(StorageMonitor::EjectStatus)> callback);
 
  protected:
   // Only used in unit tests.
   MediaTransferProtocolDeviceObserverLinux(
       StorageMonitor::Receiver* receiver,
       device::MediaTransferProtocolManager* mtp_manager,
       GetStorageInfoFunc get_storage_info_func);
 
   // device::MediaTransferProtocolManager::Observer implementation.
   // Exposed for unit tests.
-  virtual void StorageChanged(bool is_attached,
-                              const std::string& storage_name) override;
+  void StorageChanged(bool is_attached,
+                      const std::string& storage_name) override;
 
  private:
   // Mapping of storage location and mtp storage info object.
   typedef std::map<std::string, StorageInfo> StorageLocationToInfoMap;
 
   // Enumerate existing mtp storage devices.
   void EnumerateStorages();
 
   // Find the |storage_map_| key for the record with this |device_id|. Returns
   // true on success, false on failure.
@@ skipping 14 matching lines @@
   // The notifications object to use to signal newly attached devices.
   // Guaranteed to outlive this class.
   StorageMonitor::Receiver* const notifications_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaTransferProtocolDeviceObserverLinux);
 };
 
 }  // namespace storage_monitor
 
 #endif  // COMPONENTS_STORAGE_MONITOR_MEDIA_TRANSFER_PROTOCOL_DEVICE_OBSERVER_LINUX_H_