bluetooth: show better error messages for services, characteristics and descriptors

third_party/WebKit/LayoutTests/bluetooth/script-tests/server/device-disconnects-invalidates-objects.js

 'use strict';
 promise_test(() => {
   return setBluetoothFakeAdapter('DisconnectingHealthThermometerAdapter')
     .then(() => requestDeviceWithKeyDown({
       filters: [{services: ['health_thermometer']}],
       optionalServices: [request_disconnection_service_uuid]}))
     .then(device => device.gatt.connect())
     .then(gattServer => {
       let services;
       return gattServer
@@ skipping 10 matching lines @@
         .then(() => gattServer.connect())
         .then(() => services);
     })
     .then(services => {
       let promises = Promise.resolve();
       for (let service of services) {
         if (service.uuid == request_disconnection_service_uuid) {
           continue;
         }
         let error = new DOMException(
-          'Service is no longer valid. Remember to retrieve the service ' +
+          'Service with UUID ' + service.uuid +
+          ' is no longer valid. Remember to retrieve the service ' +
           'again after reconnecting.',
           'InvalidStateError');
         promises = promises.then(() =>
           assert_promise_rejects_with_message(
             service.getCharacteristic('measurement_interval'),
             error));
         promises = promises.then(() =>
           assert_promise_rejects_with_message(
             service.getCharacteristics(),
             error));
         promises = promises.then(() =>
           assert_promise_rejects_with_message(
             service.getCharacteristics('measurement_interval'),
             error));
       }
       return promises;
     });
 }, 'Calls on services after device disconnects and we reconnect. ' +
    'Should reject with InvalidStateError.');