Process Stripe and Braintree payments on checkout

Closes #13691

modules/account_payment_braintree/routes.py

@@ -46,6 +46,8 @@ def checkout(request, pool, model, id):
         record.braintree_set_nonce(
             request.form['payment_method_nonce'],
             request.form.get('device_data'))
+        if model == Payment.__name__:
+            Payment.process([record])
         return Response(
             '<body onload="window.close();"></body>',
             HTTPStatus.OK,

modules/account_payment_stripe/routes.py

@@ -69,6 +69,8 @@ def checkout_end(request, pool, model, id):
                 ])
     except ValueError:
         abort(HTTPStatus.NOT_FOUND)
+    if model == Payment.__name__:
+        Payment.process([record])
     record.stripe_intent_update()
     return Response(
         '<body onload="window.close()">', HTTPStatus.OK,