[ServiceWorker] Update formatting for tests.

LayoutTests/http/tests/serviceworker/resources/events-worker.js

Index: LayoutTests/http/tests/serviceworker/resources/events-worker.js
diff --git a/LayoutTests/http/tests/serviceworker/resources/events-worker.js b/LayoutTests/http/tests/serviceworker/resources/events-worker.js
index cfd3c540975ed5f5c44e210fba082bc7c3f260b2..80a2188677ba5a9cc728158dbf10fd973bbc0f27 100644
--- a/LayoutTests/http/tests/serviceworker/resources/events-worker.js
+++ b/LayoutTests/http/tests/serviceworker/resources/events-worker.js
@@ -4,9 +4,9 @@ function handler(event) { eventsSeen.push(event.type); }
 
 ['activate', 'install'].forEach(function(type) {
     self.addEventListener(type, handler);
-});
+  });
 
 onmessage = function(e) {
-    var message = e.data;
-    message.port.postMessage({events: eventsSeen});
+  var message = e.data;
+  message.port.postMessage({events: eventsSeen});
 };