Incorporate Pete's comments on KeyboardEventStream.

tests/html/keyboard_event_test.dart

Index: tests/html/keyboard_event_test.dart
diff --git a/tests/html/keyboard_event_test.dart b/tests/html/keyboard_event_test.dart
index 6f415f214783d7d7636506910613a1f6b70be30c..f7427351fda8d0cc4e5e40d7ceafd66b322f7534 100644
--- a/tests/html/keyboard_event_test.dart
+++ b/tests/html/keyboard_event_test.dart
@@ -23,7 +23,7 @@ main() {
     // values (a KeyboardEvent can be "init"-ed but not all the information can
     // be programmatically populated. It exists as an example for how to use
     // KeyboardEventController more than anything else.
-    new KeyboardEventStream.onKeyDown(document.body).listen(
+    KeyboardEventStream.onKeyDown(document.body).listen(
         keydownHandlerTest);
     KeyEvent.keyDownEvent.forTarget(document.body).listen(keydownHandlerTest);
     document.body.onKeyDown.listen((e) => print('regular listener'));