bluetooth: Check the order of event and promise resolution for readValue

third_party/WebKit/LayoutTests/bluetooth/characteristic/notifications/event-after-starting.html

Index: third_party/WebKit/LayoutTests/bluetooth/characteristic/notifications/event-after-starting.html
diff --git a/third_party/WebKit/LayoutTests/bluetooth/characteristic/notifications/event-after-starting.html b/third_party/WebKit/LayoutTests/bluetooth/characteristic/notifications/event-after-starting.html
index eaae9fd549928907a1527fb11a4ee6dd827c8c2b..e9fb075f57efaa41c25f7f4d7a9a2e9c17464963 100644
--- a/third_party/WebKit/LayoutTests/bluetooth/characteristic/notifications/event-after-starting.html
+++ b/third_party/WebKit/LayoutTests/bluetooth/characteristic/notifications/event-after-starting.html
@@ -12,9 +12,8 @@ promise_test(() => {
     .then(gattServer => gattServer.getPrimaryService('heart_rate'))
     .then(service => service.getCharacteristic('heart_rate_measurement'))
     .then(characteristic => {
-      return assert_event_fires_after_promise(
-        characteristic, 'startNotifications', 'characteristicvaluechanged',
-        1 /* attach 1 listener */, false /* ignore_event_promise_order */)
+      return assert_promise_resolves_before_event(
+        characteristic, 'startNotifications', 'characteristicvaluechanged')
         .then(() => characteristic.stopNotifications())
         .then(() => assert_no_events(characteristic,
                                      'characteristicvaluechanged'));