Remove use of deprecated MessageLoop methods in device.

device/serial/data_receiver.cc

Index: device/serial/data_receiver.cc
diff --git a/device/serial/data_receiver.cc b/device/serial/data_receiver.cc
index 95f2154039decc37c871d3fa0d4b8c96c706cc09..361e201a550a096ba8f6db28e7e23fcfcb6ebcd5 100644
--- a/device/serial/data_receiver.cc
+++ b/device/serial/data_receiver.cc
@@ -9,7 +9,9 @@
 #include <utility>
 
 #include "base/bind.h"
-#include "base/message_loop/message_loop.h"
+#include "base/location.h"
+#include "base/single_thread_task_runner.h"
+#include "base/threading/thread_task_runner_handle.h"
 
 namespace device {
 
@@ -225,12 +227,12 @@ bool DataReceiver::PendingReceive::DispatchDataFrame(
 
   if (data->is_error) {
     data->dispatched = true;
-    base::MessageLoop::current()->PostTask(
+    base::ThreadTaskRunnerHandle::Get()->PostTask(
         FROM_HERE, base::Bind(receive_error_callback_, data->error));
     return true;
   }
   buffer_in_use_ = true;
-  base::MessageLoop::current()->PostTask(
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
       FROM_HERE,
       base::Bind(
           receive_callback_,