Format all tests.

tests/html/keyboard_event_test.dart

 library KeyboardEventTest;
+
 import 'package:unittest/unittest.dart';
 import 'package:unittest/html_config.dart';
 import 'dart:html';
 
 // Test that we are correctly determining keyCode and charCode uniformly across
 // browsers.
 
 main() {
-
   useHtmlConfiguration();
 
   keydownHandlerTest(KeyEvent e) {
     expect(e.charCode, 0);
   }
 
   test('keyboardEvent constructor', () {
     var event = new KeyboardEvent('keyup');
   });
   test('keys', () {
-    var subscription = KeyboardEventStream.onKeyDown(document.body).listen(
-        keydownHandlerTest);
-    var subscription2 = KeyEvent.keyDownEvent.forTarget(document.body).listen(
-        keydownHandlerTest);
-    var subscription3 = document.body.onKeyDown.listen(
-        (e) => print('regular listener'));
+    var subscription =
+        KeyboardEventStream.onKeyDown(document.body).listen(keydownHandlerTest);
+    var subscription2 = KeyEvent.keyDownEvent
+        .forTarget(document.body)
+        .listen(keydownHandlerTest);
+    var subscription3 =
+        document.body.onKeyDown.listen((e) => print('regular listener'));
     subscription.cancel();
     subscription2.cancel();
     subscription3.cancel();
   });
 
   test('constructKeyEvent', () {
     var stream = KeyEvent.keyPressEvent.forTarget(document.body);
     var subscription = stream.listen(expectAsync((keyEvent) {
       expect(keyEvent.charCode, 97);
       expect(keyEvent.keyCode, 65);
@@ skipping 47 matching lines @@
   });
 
   test('KeyEventKeyboardEvent', () {
     window.onKeyDown.listen(expectAsync((KeyboardEvent event) {
       expect(event.keyCode, 16);
     }));
     var streamDown = KeyEvent.keyDownEvent.forTarget(document.body);
     streamDown.add(new KeyEvent('keydown', keyCode: 16, charCode: 0));
   });
 }
-
-