Implement permission_broker for serial devices.

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 ac669ad31917bfc990223bb93c087963430fa7ea..17d7db1970a78a17b439208a394f871efed04c1f 100644
--- a/device/serial/serial_io_handler_win.cc
+++ b/device/serial/serial_io_handler_win.cc
@@ -134,8 +134,10 @@ serial::StopBits StopBitsConstantToEnum(int stop_bits) {
 
 // static
 scoped_refptr<SerialIoHandler> SerialIoHandler::Create(
-    scoped_refptr<base::MessageLoopProxy> file_thread_message_loop) {
-  return new SerialIoHandlerWin(file_thread_message_loop);
+    scoped_refptr<base::MessageLoopProxy> file_thread_message_loop,
+    scoped_refptr<base::MessageLoopProxy> ui_thread_message_loop) {
+  return new SerialIoHandlerWin(file_thread_message_loop,
+                                ui_thread_message_loop);
 }
 
 bool SerialIoHandlerWin::PostOpen() {
@@ -239,8 +241,9 @@ void SerialIoHandlerWin::CancelWriteImpl() {
 }
 
 SerialIoHandlerWin::SerialIoHandlerWin(
-    scoped_refptr<base::MessageLoopProxy> file_thread_message_loop)
-    : SerialIoHandler(file_thread_message_loop),
+    scoped_refptr<base::MessageLoopProxy> file_thread_message_loop,
+    scoped_refptr<base::MessageLoopProxy> ui_thread_message_loop)
+    : SerialIoHandler(file_thread_message_loop, ui_thread_message_loop),
       event_mask_(0),
       is_comm_pending_(false) {
 }