[ServiceWorker] Update formatting for tests.

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

 importScripts('interfaces.js');
 importScripts('worker-test-harness.js');
 
 test(function() {
     var EVENT_HANDLER = 'object';
 
     verifyInterface('ServiceWorkerGlobalScope',
                     self,
                     {
-                        scope: 'string',
-                        clients: 'object',
+                      scope: 'string',
+                      clients: 'object',
 
-                        onactivate: EVENT_HANDLER,
-                        onfetch: EVENT_HANDLER,
-                        oninstall: EVENT_HANDLER,
-                        onmessage: EVENT_HANDLER
+                      onactivate: EVENT_HANDLER,
+                      onfetch: EVENT_HANDLER,
+                      oninstall: EVENT_HANDLER,
+                      onmessage: EVENT_HANDLER
                     });
 
     verifyInterface('ServiceWorkerClients',
                     self.clients,
                     {
-                        getServiced: 'function'
+                      getServiced: 'function'
                     });
 
     verifyInterface('Client');
     // FIXME: Get an instance and test it, or ensure property exists on prototype.
 
     verifyInterface('CacheStorage',
                     self.caches,
                     {
                       match: 'function',
                       get: 'function',
                       has: 'function',
                       create: 'function',
                       delete: 'function',
                       keys: 'function'
                     });
 
     verifyInterface('Cache',
                     new Cache(),
                     {
                       match: 'function',
                       matchAll: 'function',
                       add: 'function',
                       put: 'function', delete: 'function',
                       keys: 'function',
                       batch: 'function'
                     });
   }, 'Interfaces and attributes in ServiceWorkerGlobalScope');