Standardize usage of virtual/override/final in extensions/

extensions/browser/api/bluetooth_socket/bluetooth_api_socket.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 EXTENSIONS_BROWSER_API_BLUETOOTH_SOCKET_BLUETOOTH_API_SOCKET_H_
 #define EXTENSIONS_BROWSER_API_BLUETOOTH_SOCKET_BLUETOOTH_API_SOCKET_H_
 
 #include <string>
 
 #include "device/bluetooth/bluetooth_device.h"
@@ skipping 23 matching lines @@
                               scoped_refptr<device::BluetoothSocket>)>
       AcceptCompletionCallback;
   typedef base::Callback<void(ErrorReason, const std::string& error_message)>
       ErrorCompletionCallback;
 
   explicit BluetoothApiSocket(const std::string& owner_extension_id);
   BluetoothApiSocket(const std::string& owner_extension_id,
                      scoped_refptr<device::BluetoothSocket> socket,
                      const std::string& device_address,
                      const device::BluetoothUUID& uuid);
-  virtual ~BluetoothApiSocket();
+  ~BluetoothApiSocket() override;
 
   // Adopts a socket |socket| connected to a device with address
   // |device_address| using the service with UUID |uuid|.
   virtual void AdoptConnectedSocket(
       scoped_refptr<device::BluetoothSocket> socket,
       const std::string& device_address,
       const device::BluetoothUUID& uuid);
 
   // Adopts a socket |socket| listening on a service advertised with UUID
   // |uuid|.
@@ skipping 27 matching lines @@
   // Accepts a client connection from the socket and calls |success_callback|
   // when one has connected. If an error occurs, calls |error_callback| with a
   // reason and a message.
   virtual void Accept(const AcceptCompletionCallback& success_callback,
                       const ErrorCompletionCallback& error_callback);
 
   const std::string& device_address() const { return device_address_; }
   const device::BluetoothUUID& uuid() const { return uuid_; }
 
   // Overriden from extensions::ApiResource.
-  virtual bool IsPersistent() const override;
+  bool IsPersistent() const override;
 
   const std::string* name() const { return name_.get(); }
   void set_name(const std::string& name) { name_.reset(new std::string(name)); }
 
   bool persistent() const { return persistent_; }
   void set_persistent(bool persistent) { persistent_ = persistent; }
 
   int buffer_size() const { return buffer_size_; }
   void set_buffer_size(int buffer_size) { buffer_size_ = buffer_size; }
 
@@ skipping 49 matching lines @@
 
   // Flag indicating whether a socket is connected.
   bool connected_;
 
   DISALLOW_COPY_AND_ASSIGN(BluetoothApiSocket);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_BLUETOOTH_SOCKET_BLUETOOTH_API_SOCKET_H_