DevTools: use shorthand syntax in interface definitions.

third_party/WebKit/Source/devtools/front_end/worker_service/ServiceDispatcher.js

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 /**
  * @interface
  */
 function Service() {
 }
 
 Service.prototype = {
   /**
    * @return {!Promise}
    */
-  dispose: function() {},
+  dispose() {},
 
   /**
    * @return {function(string)}
    */
-  setNotify: function(notify) {}
+  setNotify(notify) {}
 };
 
 /**
  * @unrestricted
  */
 var ServiceDispatcher = class {
   /**
    * @param {!ServicePort} port
    */
   constructor(port) {
@@ skipping 161 matching lines @@
   function onNewPort(port) {
     var dispatcher = new ServiceDispatcher(new WorkerServicePort(port));
     dispatchers.push(dispatcher);
   }
   Runtime.setSharedWorkerNewPortCallback(onNewPort);
 } else {
   var worker = /** @type {!Object} */ (self);
   var servicePort = new WorkerServicePort(/** @type {!Worker} */ (worker));
   dispatchers.push(new ServiceDispatcher(servicePort));
 }