Implement WebBluetooth descriptor.writeValue()

third_party/WebKit/LayoutTests/bluetooth/script-tests/descriptor/service-is-removed.js

 'use strict';
 promise_test(() => {
   let val = new Uint8Array([1]);
   return setBluetoothFakeAdapter('DisconnectingHealthThermometerAdapter')
-      .then(
-          () => requestDeviceWithKeyDown(
-              {filters: [{services: ['health_thermometer']}]}))
-      .then(device => device.gatt.connect())
-      .then(gattServer => gattServer.getPrimaryService('health_thermometer'))
-      .then(service => service.getCharacteristic('measurement_interval'))
-      .then(
-          characteristic => characteristic.getDescriptor(user_description.name))
-      .then(descriptor => {
-        return setBluetoothFakeAdapter('MissingServiceHeartRateAdapter')
-            .then(
-                () => assert_promise_rejects_with_message(
-                    descriptor.CALLS([readValue()]),
-                    new DOMException(
-                        'GATT Service no longer exists.', 'InvalidStateError'),
-                    'Service got removed.'));
-      });
+    .then(() => requestDeviceWithKeyDown({

[ortuno, 2017/01/31 19:50:09]

Why is this the only file whose format changed? io-op-fails.js has the old
format.

[dougt, 2017/01/31 20:59:16]

io-op-fails.js has the new format (just look at all of that white space!).

[ortuno, 2017/02/01 00:01:58]

I mean the old new format... I see a lot of whitespace on io-op-fails.js but not
much here. E.g. () => is on the same line as .then here but on io-op-fails.js
it's on a new line.

+      filters: [{services: ['health_thermometer']}]}))
+    .then(device => device.gatt.connect())
+    .then(gattServer => gattServer.getPrimaryService('health_thermometer'))
+    .then(service => service.getCharacteristic('measurement_interval'))
+    .then(characteristic => characteristic.getDescriptor(user_description.name))
+    .then(descriptor => {
+      return setBluetoothFakeAdapter('MissingServiceHeartRateAdapter')
+        .then(() => assert_promise_rejects_with_message(
+          descriptor.CALLS([readValue()|writeValue(val)]),
+          new DOMException(
+            'GATT Service no longer exists.',
+            'InvalidStateError'),
+          'Service got removed.'));
+    });
 }, 'Service gets removed. Reject with InvalidStateError.');