Revert "Fix observatory tests broken by running dartfmt."

runtime/observatory/tests/observatory_ui/mocks/repositories/notification.dart

Index: runtime/observatory/tests/observatory_ui/mocks/repositories/notification.dart
diff --git a/runtime/observatory/tests/observatory_ui/mocks/repositories/notification.dart b/runtime/observatory/tests/observatory_ui/mocks/repositories/notification.dart
index 8855d92fe77579e70c55658e6baf989d6c6c062b..f03cd27257eab33f552fa96e61df31445c3a7bad 100644
--- a/runtime/observatory/tests/observatory_ui/mocks/repositories/notification.dart
+++ b/runtime/observatory/tests/observatory_ui/mocks/repositories/notification.dart
@@ -27,6 +27,7 @@ class NotificationRepositoryMock implements M.NotificationRepository {
   bool deleteInvoked = false;
   bool deleteAllInvoked = false;
 
+
   void add(M.Notification notification) {
     addInvoked = true;
     if (_add != null) _add(notification);
@@ -42,19 +43,16 @@ class NotificationRepositoryMock implements M.NotificationRepository {
     if (_add != null) _delete(notification);
   }
 
-  void deleteAll() {
-    deleteAllInvoked = true;
-  }
+  void deleteAll() { deleteAllInvoked = true; }
 
   void triggerChangeEvent() {
     _onChange.add(new NotificationChangeEventMock(repository: this));
   }
 
-  NotificationRepositoryMock(
-      {Iterable<M.Notification> list: const [],
+  NotificationRepositoryMock({Iterable<M.Notification> list : const [],
       NotificationRepositoryMockCallback add,
       NotificationRepositoryMockCallback delete})
-      : _list = list,
-        _add = add,
-        _delete = delete;
+    : _list = list,
+      _add = add,
+      _delete = delete;
 }