Standardize usage of virtual/override/final in remoting/

remoting/client/plugin/pepper_packet_socket_factory.h

Index: remoting/client/plugin/pepper_packet_socket_factory.h
diff --git a/remoting/client/plugin/pepper_packet_socket_factory.h b/remoting/client/plugin/pepper_packet_socket_factory.h
index 1cd15e7b4fe1ab6d10e60ee32676220fdef0fd54..6fcf0a48867b92c6bd463b5741826da29f7a71ac 100644
--- a/remoting/client/plugin/pepper_packet_socket_factory.h
+++ b/remoting/client/plugin/pepper_packet_socket_factory.h
@@ -14,23 +14,24 @@ namespace remoting {
 class PepperPacketSocketFactory : public rtc::PacketSocketFactory {
  public:
   explicit PepperPacketSocketFactory(const pp::InstanceHandle& instance);
-  virtual ~PepperPacketSocketFactory();
+  ~PepperPacketSocketFactory() override;
 
-  virtual rtc::AsyncPacketSocket* CreateUdpSocket(
+  rtc::AsyncPacketSocket* CreateUdpSocket(
       const rtc::SocketAddress& local_address,
-      int min_port, int max_port) override;
-  virtual rtc::AsyncPacketSocket* CreateServerTcpSocket(
+      int min_port,
+      int max_port) override;
+  rtc::AsyncPacketSocket* CreateServerTcpSocket(
       const rtc::SocketAddress& local_address,
       int min_port,
       int max_port,
       int opts) override;
-  virtual rtc::AsyncPacketSocket* CreateClientTcpSocket(
+  rtc::AsyncPacketSocket* CreateClientTcpSocket(
       const rtc::SocketAddress& local_address,
       const rtc::SocketAddress& remote_address,
       const rtc::ProxyInfo& proxy_info,
       const std::string& user_agent,
       int opts) override;
-  virtual rtc::AsyncResolverInterface* CreateAsyncResolver() override;
+  rtc::AsyncResolverInterface* CreateAsyncResolver() override;
 
  private:
   const pp::InstanceHandle pp_instance_;