Standardize usage of virtual/override/final in extensions/

extensions/browser/api/bluetooth/bluetooth_private_api.h

Index: extensions/browser/api/bluetooth/bluetooth_private_api.h
diff --git a/extensions/browser/api/bluetooth/bluetooth_private_api.h b/extensions/browser/api/bluetooth/bluetooth_private_api.h
index 02d9e7dd74243d5f7ede88507cfb30a62b7f069e..68c4a991cfec2d4192f15705736ecd57b52998d2 100644
--- a/extensions/browser/api/bluetooth/bluetooth_private_api.h
+++ b/extensions/browser/api/bluetooth/bluetooth_private_api.h
@@ -26,14 +26,14 @@ class BluetoothPrivateAPI : public BrowserContextKeyedAPI,
       GetFactoryInstance();
 
   explicit BluetoothPrivateAPI(content::BrowserContext* context);
-  virtual ~BluetoothPrivateAPI();
+  ~BluetoothPrivateAPI() override;
 
   // KeyedService implementation.
-  virtual void Shutdown() override;
+  void Shutdown() override;
 
   // EventRouter::Observer implementation.
-  virtual void OnListenerAdded(const EventListenerInfo& details) override;
-  virtual void OnListenerRemoved(const EventListenerInfo& details) override;
+  void OnListenerAdded(const EventListenerInfo& details) override;
+  void OnListenerRemoved(const EventListenerInfo& details) override;
 
   // BrowserContextKeyedAPI implementation.
   static const char* service_name() { return "BluetoothPrivateAPI"; }
@@ -56,7 +56,7 @@ class BluetoothPrivateSetAdapterStateFunction
   BluetoothPrivateSetAdapterStateFunction();
 
  private:
-  virtual ~BluetoothPrivateSetAdapterStateFunction();
+  ~BluetoothPrivateSetAdapterStateFunction() override;
 
   base::Closure CreatePropertySetCallback(const std::string& property_name);
   base::Closure CreatePropertyErrorCallback(const std::string& property_name);
@@ -65,7 +65,7 @@ class BluetoothPrivateSetAdapterStateFunction
   void SendError();
 
   // BluetoothExtensionFunction overrides:
-  virtual bool DoWork(scoped_refptr<device::BluetoothAdapter> adapter) override;
+  bool DoWork(scoped_refptr<device::BluetoothAdapter> adapter) override;
 
   // Set of expected adapter properties to be changed.
   std::set<std::string> pending_properties_;
@@ -83,10 +83,10 @@ class BluetoothPrivateSetPairingResponseFunction
                              BLUETOOTHPRIVATE_SETPAIRINGRESPONSE)
   BluetoothPrivateSetPairingResponseFunction();
   // BluetoothExtensionFunction overrides:
-  virtual bool DoWork(scoped_refptr<device::BluetoothAdapter> adapter) override;
+  bool DoWork(scoped_refptr<device::BluetoothAdapter> adapter) override;
 
  private:
-  virtual ~BluetoothPrivateSetPairingResponseFunction();
+  ~BluetoothPrivateSetPairingResponseFunction() override;
   DISALLOW_COPY_AND_ASSIGN(BluetoothPrivateSetPairingResponseFunction);
 };