bluetooth: Separate notification tests

third_party/WebKit/LayoutTests/bluetooth/notifications/add-listener-after-promise.html

Index: third_party/WebKit/LayoutTests/bluetooth/notifications/add-listener-after-promise.html
diff --git a/third_party/WebKit/LayoutTests/bluetooth/notifications/device-goes-out-of-range.html b/third_party/WebKit/LayoutTests/bluetooth/notifications/add-listener-after-promise.html
similarity index 55%
copy from third_party/WebKit/LayoutTests/bluetooth/notifications/device-goes-out-of-range.html
copy to third_party/WebKit/LayoutTests/bluetooth/notifications/add-listener-after-promise.html
index 1d5add9481b730d551aac048f1dc532cf6113511..dfbd2f37d9bdc5c3c3dcdb1ee2557f0b683fa825 100644
--- a/third_party/WebKit/LayoutTests/bluetooth/notifications/device-goes-out-of-range.html
+++ b/third_party/WebKit/LayoutTests/bluetooth/notifications/add-listener-after-promise.html
@@ -12,12 +12,17 @@ promise_test(() => {
     .then(gattServer => gattServer.getPrimaryService('heart_rate'))
     .then(service => service.getCharacteristic('heart_rate_measurement'))
     .then(characteristic => {
-      return setBluetoothFakeAdapter('EmptyAdapter')
-        .then(() => assert_promise_rejects_with_message(
-          characteristic.startNotifications(),
-          new DOMException(
-            'Bluetooth Device is no longer in range.', 'NetworkError'),
-          'Device went out of range.'));
+      return characteristic.startNotifications()
+        .then(() => new Promise(resolve => {
+          let event_listener = e => {
+            characteristic.removeEventListener(
+              'characteristicvaluechanged', event_listener);
+            resolve();
+          };
+          characteristic.addEventListener(
+            'characteristicvaluechanged', event_listener);
+        }));
     });
-}, 'Device goes out of range. Reject with NetworkError.');
+}, 'Registering after the promise resolves shouldn\'t result in events ' +
+   'getting dropped.');
 </script>