Use SequenceChecker from public API

Bug: webrtc:12419
Change-Id: I00cca16a0ec70246156ba00b97aa7ae5ccbf5364
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/205323
Commit-Queue: Artem Titov <titovartem@webrtc.org>
Reviewed-by: Tommi <tommi@webrtc.org>
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#33220}
diff --git a/modules/video_coding/video_coding_impl.h b/modules/video_coding/video_coding_impl.h
index d8b0225..d747994 100644
--- a/modules/video_coding/video_coding_impl.h
+++ b/modules/video_coding/video_coding_impl.h
@@ -16,6 +16,7 @@
 #include <vector>
 
 #include "absl/types/optional.h"
+#include "api/sequence_checker.h"
 #include "modules/video_coding/decoder_database.h"
 #include "modules/video_coding/frame_buffer.h"
 #include "modules/video_coding/generic_decoder.h"
@@ -25,7 +26,6 @@
 #include "modules/video_coding/timing.h"
 #include "rtc_base/one_time_event.h"
 #include "rtc_base/synchronization/mutex.h"
-#include "rtc_base/synchronization/sequence_checker.h"
 #include "rtc_base/thread_annotations.h"
 #include "system_wrappers/include/clock.h"