[DevTools] Do not expose agents on Target

third_party/WebKit/Source/devtools/front_end/sdk/ServiceWorkerCacheModel.js

 // Copyright 2014 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.
 /**
  * @unrestricted
  */
 SDK.ServiceWorkerCacheModel = class extends SDK.SDKModel {
   /**
    * Invariant: This model can only be constructed on a ServiceWorker target.
    * @param {!SDK.Target} target
+   * @param {!Protocol.Dispatcher} dispatcher
    */
-  constructor(target) {
-    super(target);
+  constructor(target, dispatcher) {
+    super(target, dispatcher);
 
     /** @type {!Map<string, !SDK.ServiceWorkerCacheModel.Cache>} */
     this._caches = new Map();
 
-    this._agent = target.cacheStorageAgent();
+    this._agent = dispatcher.cacheStorageAgent();
 
     this._securityOriginManager = target.model(SDK.SecurityOriginManager);
 
     /** @type {boolean} */
     this._enabled = false;
   }
 
   enable() {
     if (this._enabled)
       return;
@@ skipping 274 matching lines @@
   }
 
   /**
    * @override
    * @return {string}
    */
   toString() {
     return this.securityOrigin + this.cacheName;
   }
 };