Reapply the expanded names with the correct form of requestFileSystem on the

tests/html/mutationobserver_test.dart

Index: tests/html/mutationobserver_test.dart
diff --git a/tests/html/mutationobserver_test.dart b/tests/html/mutationobserver_test.dart
index 1886a57a28bb5bbfb9292a67705ec828d1b857ca..9710310fc239c4861e320806315a29d657c7eb01 100644
--- a/tests/html/mutationobserver_test.dart
+++ b/tests/html/mutationobserver_test.dart
@@ -58,20 +58,6 @@ main() {
       }, expectation);
     });
 
-    test('direct-parallel options-map', () {
-      expect(() {
-        var container = new DivElement();
-        var div1 = new DivElement();
-        var div2 = new DivElement();
-        var mutationObserver = new MutationObserver(
-            mutationCallback(2, orderedEquals([div1, div2])));
-        mutationObserver.observe(container, options: {'childList': true});
-
-        container.nodes.add(div1);
-        container.nodes.add(div2);
-      }, expectation);
-    });
-
     test('direct-parallel options-named', () {
       expect(() {
         var container = new DivElement();
@@ -100,22 +86,6 @@ main() {
       }, expectation);
     });
 
-
-    test('subtree options-map', () {
-      expect(() {
-        var container = new DivElement();
-        var div1 = new DivElement();
-        var div2 = new DivElement();
-        var mutationObserver = new MutationObserver(
-            mutationCallback(2, orderedEquals([div1, div2])));
-        mutationObserver.observe(container,
-                                 options: {'childList': true, 'subtree': true});
-
-        container.nodes.add(div1);
-        div1.nodes.add(div2);
-      }, expectation);
-    });
-
     test('subtree options-named', () {
       expect(() {
         var container = new DivElement();