Update mojo sdk to rev cfc99316100efdfa7d53d83f9e07f1d4d3765c21

device/serial/serial.mojom

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+module device.serial;
+
 import "data_stream.mojom";
 
-module device.serial {
-
 struct DeviceInfo {
   string path;
   uint16 vendor_id;
   bool has_vendor_id = false;
   uint16 product_id;
   bool has_product_id = false;
   string? display_name;
 };
 
 enum SendError {
@@ skipping 78 matching lines @@
           DataSource& source);
 };
 
 interface Connection {
   GetInfo() => (ConnectionInfo? info);
   SetOptions(ConnectionOptions options) => (bool success);
   SetControlSignals(HostControlSignals signals) => (bool success);
   GetControlSignals() => (DeviceControlSignals? signals);
   Flush() => (bool success);
 };
-
-}