iridium: port setup_flow_control to use GTask

plugins/iridium/mm-broadband-modem-iridium.c

@@ -168,25 +168,24 @@ setup_flow_control_finish (MMIfaceModem *self,
                            GAsyncResult *res,
                            GError **error)
 {
-    return !g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT (res), error);
+    return g_task_propagate_boolean (G_TASK (res), error);
 }
 
 static void
 setup_flow_control_ready (MMBroadbandModemIridium *self,
                           GAsyncResult *res,
-                          GSimpleAsyncResult *operation_result)
+                          GTask *task)
 {
     GError *error = NULL;
 
     if (!mm_base_modem_at_command_finish (MM_BASE_MODEM (self), res, &error))
         /* Let the error be critical. We DO need RTS/CTS in order to have
          * proper modem disabling. */
-        g_simple_async_result_take_error (operation_result, error);
+        g_task_return_error (task, error);
     else
-        g_simple_async_result_set_op_res_gboolean (operation_result, TRUE);
+        g_task_return_boolean (task, TRUE);
 
-    g_simple_async_result_complete (operation_result);
-    g_object_unref (operation_result);
+    g_object_unref (task);
 }
 
 static void
@@ -194,13 +193,6 @@ setup_flow_control (MMIfaceModem *self,
                     GAsyncReadyCallback callback,
                     gpointer user_data)
 {
-    GSimpleAsyncResult *result;
-
-    result = g_simple_async_result_new (G_OBJECT (self),
-                                        callback,
-                                        user_data,
-                                        setup_flow_control);
-
     /* Enable RTS/CTS flow control.
      * Other available values:
      *   AT&K0: Disable flow control
@@ -213,7 +205,7 @@ setup_flow_control (MMIfaceModem *self,
                               3,
                               FALSE,
                               (GAsyncReadyCallback)setup_flow_control_ready,
-                              result);
+                              g_task_new (self, NULL, callback, user_data));
 }
 
 /*****************************************************************************/