[PATCH v2 04/12] Include <chrono> in event-loop.c

[Tom Tromey]

Include <chrono> in event-loop.c, because it is used there.  Currently
it is included indirectly, but after the subsequent patches this will
no longer be the case.

gdb/ChangeLog
2020-03-14  Tom Tromey  <tom@tromey.com>

	* event-loop.c: Include <chrono>.
---
 gdb/ChangeLog    | 4 ++++
 gdb/event-loop.c | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/gdb/event-loop.c b/gdb/event-loop.c
index ae9d27eedd7..880fc30d9d6 100644
--- a/gdb/event-loop.c
+++ b/gdb/event-loop.c
@@ -22,6 +22,8 @@
 #include "event-top.h"
 #include "ser-event.h"
 
+#include <chrono>
+
 #ifdef HAVE_POLL
 #if defined (HAVE_POLL_H)
 #include <poll.h>
-- 
2.17.2