Replace rtc::ThreadChecker with webrtc::SequenceChecker

Bug: webrtc:12419
Change-Id: I825c014cc1c4b1dcba5ef300409d44859e971144
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/205002
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Tommi <tommi@webrtc.org>
Commit-Queue: Artem Titov <titovartem@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#33136}
diff --git a/modules/audio_device/audio_device_buffer.h b/modules/audio_device/audio_device_buffer.h
index 37b8a2e..0f24459 100644
--- a/modules/audio_device/audio_device_buffer.h
+++ b/modules/audio_device/audio_device_buffer.h
@@ -20,9 +20,9 @@
 #include "modules/audio_device/include/audio_device_defines.h"
 #include "rtc_base/buffer.h"
 #include "rtc_base/synchronization/mutex.h"
+#include "rtc_base/synchronization/sequence_checker.h"
 #include "rtc_base/task_queue.h"
 #include "rtc_base/thread_annotations.h"
-#include "rtc_base/thread_checker.h"
 
 namespace webrtc {
 
@@ -140,7 +140,7 @@
   // TODO(henrika): see if it is possible to refactor and annotate all members.
 
   // Main thread on which this object is created.
-  rtc::ThreadChecker main_thread_checker_;
+  SequenceChecker main_thread_checker_;
 
   Mutex lock_;