Standardize usage of virtual/override/final in media/

media/cast/test/utility/udp_proxy_main.cc

Index: media/cast/test/utility/udp_proxy_main.cc
diff --git a/media/cast/test/utility/udp_proxy_main.cc b/media/cast/test/utility/udp_proxy_main.cc
index 425d2e39e1b83ac7dce215de5d58cce6a9103c1c..212b5976e39f9518925a3365d73422dfc9852e87 100644
--- a/media/cast/test/utility/udp_proxy_main.cc
+++ b/media/cast/test/utility/udp_proxy_main.cc
@@ -68,8 +68,7 @@ ByteCounter out_pipe_output_counter;
 class ByteCounterPipe : public media::cast::test::PacketPipe {
  public:
   ByteCounterPipe(ByteCounter* counter) : counter_(counter) {}
-  virtual void Send(scoped_ptr<media::cast::Packet> packet)
-      override {
+  void Send(scoped_ptr<media::cast::Packet> packet) override {
     counter_->Increment(packet->size());
     pipe_->Send(packet.Pass());
   }