Move off of deprecated base::NonThreadSafe in device/

device/serial/serial_io_handler_win.cc

Index: device/serial/serial_io_handler_win.cc
diff --git a/device/serial/serial_io_handler_win.cc b/device/serial/serial_io_handler_win.cc
index 6be1127d12e84eb41bdf39748c981d9fdd9c16e4..75461fe7843c22e6657f1e92efd17667b69d6726 100644
--- a/device/serial/serial_io_handler_win.cc
+++ b/device/serial/serial_io_handler_win.cc
@@ -12,7 +12,7 @@
 #include "base/bind.h"
 #include "base/macros.h"
 #include "base/scoped_observer.h"
-#include "base/threading/thread_checker.h"
+#include "base/sequence_checker.h"
 #include "device/base/device_info_query_win.h"
 #include "device/base/device_monitor_win.h"
 #include "third_party/re2/src/re2/re2.h"
@@ -196,7 +196,7 @@ class SerialIoHandlerWin::UiThreadHelper final
 };
 
 void SerialIoHandlerWin::OnDeviceRemoved(const std::string& device_path) {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
 
   DeviceInfoQueryWin device_info_query;
   if (!device_info_query.device_info_list_valid()) {
@@ -266,7 +266,7 @@ bool SerialIoHandlerWin::PostOpen() {
 }
 
 void SerialIoHandlerWin::ReadImpl() {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   DCHECK(pending_read_buffer());
   DCHECK(file().IsValid());
 
@@ -285,7 +285,7 @@ void SerialIoHandlerWin::ReadImpl() {
 }
 
 void SerialIoHandlerWin::WriteImpl() {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   DCHECK(pending_write_buffer());
   DCHECK(file().IsValid());
 
@@ -301,13 +301,13 @@ void SerialIoHandlerWin::WriteImpl() {
 }
 
 void SerialIoHandlerWin::CancelReadImpl() {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   DCHECK(file().IsValid());
   ::CancelIo(file().GetPlatformFile());
 }
 
 void SerialIoHandlerWin::CancelWriteImpl() {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   DCHECK(file().IsValid());
   ::CancelIo(file().GetPlatformFile());
 }
@@ -375,7 +375,7 @@ void SerialIoHandlerWin::OnIOCompleted(
     base::MessageLoopForIO::IOContext* context,
     DWORD bytes_transferred,
     DWORD error) {
-  DCHECK(CalledOnValidThread());
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   if (context == comm_context_.get()) {
     DWORD errors;
     COMSTAT status;