replace OVERRIDE and FINAL with override and final in net/

net/tools/quic/quic_epoll_clock.h

Index: net/tools/quic/quic_epoll_clock.h
diff --git a/net/tools/quic/quic_epoll_clock.h b/net/tools/quic/quic_epoll_clock.h
index d96bff643892a8788aa02865845dc607c97fef61..4eebefbab7c1971834deb25b6c8ab47a44c4a029 100644
--- a/net/tools/quic/quic_epoll_clock.h
+++ b/net/tools/quic/quic_epoll_clock.h
@@ -24,11 +24,11 @@ class QuicEpollClock : public QuicClock {
   virtual ~QuicEpollClock();
 
   // Returns the approximate current time as a QuicTime object.
-  virtual QuicTime ApproximateNow() const OVERRIDE;
+  virtual QuicTime ApproximateNow() const override;
 
   // Returns the current time as a QuicTime object.
   // Note: this use significant resources please use only if needed.
-  virtual QuicTime Now() const OVERRIDE;
+  virtual QuicTime Now() const override;
 
  protected:
   EpollServer* epoll_server_;