Replace assert_promise_rejects with upstream promise_rejects.

third_party/WebKit/LayoutTests/http/tests/geofencing/resources/worker-service-not-available.js

Index: third_party/WebKit/LayoutTests/http/tests/geofencing/resources/worker-service-not-available.js
diff --git a/third_party/WebKit/LayoutTests/http/tests/geofencing/resources/worker-service-not-available.js b/third_party/WebKit/LayoutTests/http/tests/geofencing/resources/worker-service-not-available.js
index 0f88dc17c38c8ae2696f334ab1555a0daa1a02a2..754a9fb86d86c49e748d9d7bfd20d67ca1c05032 100644
--- a/third_party/WebKit/LayoutTests/http/tests/geofencing/resources/worker-service-not-available.js
+++ b/third_party/WebKit/LayoutTests/http/tests/geofencing/resources/worker-service-not-available.js
@@ -1,25 +1,27 @@
 importScripts('../../serviceworker/resources/worker-testharness.js');
-importScripts('../../resources/testharness-helpers.js');
 
 promise_test(function(test) {
-    return assert_promise_rejects(
+    return promise_rejects(
+      test,
+      'AbortError',
       navigator.geofencing.registerRegion(
         new CircularGeofencingRegion({latitude: 37.421999,
                                      longitude: -122.084015})),
-      'AbortError',
       'registerRegion should fail with an AbortError');
   }, 'registerRegion should fail');
 
 promise_test(function(test) {
-    return assert_promise_rejects(
-      navigator.geofencing.unregisterRegion(""),
+    return promise_rejects(
+      test,
       'AbortError',
+      navigator.geofencing.unregisterRegion(""),
       'unregisterRegion should fail with an AbortError');
   }, 'unregisterRegion should fail');
 
 promise_test(function(test) {
-    return assert_promise_rejects(
-      navigator.geofencing.getRegisteredRegions(),
+    return promise_rejects(
+      test,
       'AbortError',
+      navigator.geofencing.getRegisteredRegions(),
       'getRegisteredRegions should fail with an AbortError');
   }, 'getRegisteredRegions should fail');