Upgrading tests with unittest deprecations

tests/html/request_animation_frame_test.dart

Index: tests/html/request_animation_frame_test.dart
diff --git a/tests/html/request_animation_frame_test.dart b/tests/html/request_animation_frame_test.dart
index 2bf8a0c493215b13320d424422a991daa0708bcd..f240b70ebcc199bde16bda99ee8f3f748a77c4b2 100644
--- a/tests/html/request_animation_frame_test.dart
+++ b/tests/html/request_animation_frame_test.dart
@@ -12,14 +12,14 @@ main() {
 
   test('oneShot', () {
       var frame = window.requestAnimationFrame(
-          expectAsync1((timestamp) { }));
+          expectAsync((timestamp) { }));
     });
 
   test('twoShot', () {
       var frame = window.requestAnimationFrame(
-          expectAsync1((timestamp1) {
+          expectAsync((timestamp1) {
             window.requestAnimationFrame(
-                expectAsync1((timestamp2) {
+                expectAsync((timestamp2) {
                     // Not monotonic on Safari and IE.
                     // expect(timestamp2, greaterThan(timestamp1),
                     //    reason: 'timestamps ordered');
@@ -29,7 +29,7 @@ main() {
 
 
   // How do we test that a callback is never called?  We can't wrap the uncalled
-  // callback with 'expectAsync1'.  Will request several frames and try
+  // callback with 'expectAsync'.  Will request several frames and try
   // cancelling the one that is not the last.
   test('cancel1', () {
       var frame1 = window.requestAnimationFrame(
@@ -37,19 +37,19 @@ main() {
             throw new Exception('Should have been cancelled');
           });
       var frame2 = window.requestAnimationFrame(
-          expectAsync1((timestamp2) { }));
+          expectAsync((timestamp2) { }));
       window.cancelAnimationFrame(frame1);
     });
 
   test('cancel2', () {
       var frame1 = window.requestAnimationFrame(
-          expectAsync1((timestamp1) { }));
+          expectAsync((timestamp1) { }));
       var frame2 = window.requestAnimationFrame(
           (timestamp2) {
             throw new Exception('Should have been cancelled');
           });
       var frame3 = window.requestAnimationFrame(
-          expectAsync1((timestamp3) { }));
+          expectAsync((timestamp3) { }));
       window.cancelAnimationFrame(frame2);
     });
 }