replace OVERRIDE and FINAL with override and final in sync/

sync/engine/net/server_connection_manager.h

Index: sync/engine/net/server_connection_manager.h
diff --git a/sync/engine/net/server_connection_manager.h b/sync/engine/net/server_connection_manager.h
index c081f8ea22b0fd428b0ef63acab8acb9f0d4b3e3..f7a7575c3052564903c1791ab66cef22e67336a7 100644
--- a/sync/engine/net/server_connection_manager.h
+++ b/sync/engine/net/server_connection_manager.h
@@ -217,7 +217,7 @@ class SYNC_EXPORT_PRIVATE ServerConnectionManager : public CancelationObserver {
   // We expect this to get called on a different thread than the valid
   // ThreadChecker thread, as we want to kill any pending http traffic without
   // having to wait for the request to complete.
-  virtual void OnSignalReceived() OVERRIDE FINAL;
+  virtual void OnSignalReceived() override final;
 
   void set_client_id(const std::string& client_id) {
     DCHECK(thread_checker_.CalledOnValidThread());