Implement ServiceWorkerRegistration related DevTools events [1/2 blink]

Source/devtools/front_end/sdk/ServiceWorkerManager.js

Index: Source/devtools/front_end/sdk/ServiceWorkerManager.js
diff --git a/Source/devtools/front_end/sdk/ServiceWorkerManager.js b/Source/devtools/front_end/sdk/ServiceWorkerManager.js
index b07a80619610ef9794242378ac0a4a3226346839..ddd10de1250ed5f1022685f3bfdd0dfa3f7b8b8a 100644
--- a/Source/devtools/front_end/sdk/ServiceWorkerManager.js
+++ b/Source/devtools/front_end/sdk/ServiceWorkerManager.js
@@ -161,6 +161,33 @@ WebInspector.ServiceWorkerDispatcher.prototype = {
     dispatchMessage: function(workerId, message)
     {
         this._manager._dispatchMessage(workerId, message);
+    },
+
+    /**
+     * @override
+     * @param {!Array.<!ServiceWorkerAgent.ServiceWorkerRegistration>} registrations
+     */
+    workerRegistrationUpdated: function(registrations)
+    {
+        //FIXME: implement this.
+    },
+
+    /**
+     * @override
+     * @param {!Array.<!ServiceWorkerAgent.ServiceWorkerVersion>} versions
+     */
+    workerVersionUpdated: function(versions)
+    {
+        //FIXME: implement this.
+    },
+
+    /**
+     * @override
+     * @param {string} registrationId
+     */
+    workerRegistrationDeleted: function(registrationId)
+    {
+        //FIXME: implement this.
     }
 }