diff --git a/ipc/chromium/src/third_party/libevent/android/event2/event-config.h b/ipc/chromium/src/third_party/libevent/android/event2/event-config.h
--- a/ipc/chromium/src/third_party/libevent/android/event2/event-config.h
+++ b/ipc/chromium/src/third_party/libevent/android/event2/event-config.h
@@ -25,17 +25,17 @@
 
 /* Define to 1 if you have the `accept4' function. */
 #define EVENT__HAVE_ACCEPT4 1
 
 /* Define to 1 if you have the `arc4random' function. */
 #define EVENT__HAVE_ARC4RANDOM 1
 
 /* Define to 1 if you have the `arc4random_buf' function. */
-#define EVENT__HAVE_ARC4RANDOM_BUF 1
+/* #undef EVENT__HAVE_ARC4RANDOM_BUF */
 
 /* Define to 1 if you have the <arpa/inet.h> header file. */
 #define EVENT__HAVE_ARPA_INET_H 1
 
 /* Define to 1 if you have the `clock_gettime' function. */
 #define EVENT__HAVE_CLOCK_GETTIME 1
 
 /* Define to 1 if you have the declaration of `CTL_KERN', and to 0 if you