replace OVERRIDE and FINAL with override and final in media/

media/cast/test/loopback_transport.h

Index: media/cast/test/loopback_transport.h
diff --git a/media/cast/test/loopback_transport.h b/media/cast/test/loopback_transport.h
index cf29fbb7895c33eddf4aa088a9f238bfa72d56eb..64d99e6c3a682d383ede88148806bea89b0a8f4e 100644
--- a/media/cast/test/loopback_transport.h
+++ b/media/cast/test/loopback_transport.h
@@ -30,9 +30,9 @@ class LoopBackTransport : public PacketSender {
   virtual ~LoopBackTransport();
 
   virtual bool SendPacket(PacketRef packet,
-                          const base::Closure& cb) OVERRIDE;
+                          const base::Closure& cb) override;
 
-  virtual int64 GetBytesSent() OVERRIDE;
+  virtual int64 GetBytesSent() override;
 
   // Initiailize this loopback transport.
   // Establish a flow of packets from |pipe| to |packet_receiver|.