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

third_party/WebKit/LayoutTests/bluetooth/characteristic/readValue/add-multiple-event-listeners.html

Index: third_party/WebKit/LayoutTests/bluetooth/characteristic/readValue/add-multiple-event-listeners.html
diff --git a/third_party/WebKit/LayoutTests/bluetooth/characteristic/readValue/add-multiple-event-listeners.html b/third_party/WebKit/LayoutTests/bluetooth/characteristic/readValue/add-multiple-event-listeners.html
index 206060c444baec9d927ead08a476803fdfa9e20b..14e2273d978dedb5b4d3fea3413a531ea6b5be6c 100644
--- a/third_party/WebKit/LayoutTests/bluetooth/characteristic/readValue/add-multiple-event-listeners.html
+++ b/third_party/WebKit/LayoutTests/bluetooth/characteristic/readValue/add-multiple-event-listeners.html
@@ -12,20 +12,15 @@ promise_test(() => {
     .then(gattServer => gattServer.getPrimaryService('heart_rate'))
     .then(service => service.getCharacteristic('body_sensor_location'))
     .then(characteristic => {
-      return assert_event_fires_after_promise(characteristic,
+      return assert_event_fires_before_promise(characteristic,
                                               'readValue',
                                               'characteristicvaluechanged',
-                                              3 /* attach 3 listeners */,
-                                              true /* ignore_event_promise_order */);
+                                              3 /* attach 3 listeners */);
     }).then(results => {
       let read_value = results[0].buffer;
       let event_values = results.slice(1).map(v => v.buffer);
       for (let event_value of event_values) {
-        // TODO(ortuno): The DataView used to resolve the promise
-        // should be the same DataView as the one saved in the
-        // characteristic.
-        // http://crbug.com/543347
-        // assert_equals(event.target.value, value);
+        assert_equals(event_value, read_value);
         assert_array_equals(event_value, read_value);
       }
     });