Make WebRTC use third_party/libevent rather than base/third_party/libevent

Bug: chromium:1335194
Change-Id: I084b391b42e2496163ea625c0bdc9255177e5603
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/266680
Auto-Submit: Daniel.L (Byoungchan) Lee <daniel.l@hpcnt.com>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37375}
diff --git a/rtc_base/task_queue_libevent.cc b/rtc_base/task_queue_libevent.cc
index 4f56400..ba80a64 100644
--- a/rtc_base/task_queue_libevent.cc
+++ b/rtc_base/task_queue_libevent.cc
@@ -27,7 +27,6 @@
 #include "absl/strings/string_view.h"
 #include "api/task_queue/queued_task.h"
 #include "api/task_queue/task_queue_base.h"
-#include "base/third_party/libevent/event.h"
 #include "rtc_base/checks.h"
 #include "rtc_base/logging.h"
 #include "rtc_base/numerics/safe_conversions.h"
@@ -36,6 +35,7 @@
 #include "rtc_base/synchronization/mutex.h"
 #include "rtc_base/thread_annotations.h"
 #include "rtc_base/time_utils.h"
+#include "third_party/libevent/event.h"
 
 namespace webrtc {
 namespace {