[DevTools] Do not expose agents on Target

third_party/WebKit/Source/devtools/front_end/resources/ClearStorageView.js

 // Copyright (c) 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.
 /**
  * @implements {SDK.TargetManager.Observer}
  * @unrestricted
  */
 Resources.ClearStorageView = class extends UI.VBox {
   constructor() {
     super(true);
@@ skipping 84 matching lines @@
     this._reportView.setSubtitle(this._securityOrigin);
   }
 
   _clear() {
     var storageTypes = [];
     for (var type of this._settings.keys()) {
       if (this._settings.get(type).get())
         storageTypes.push(type);
     }
 
-    this._target.storageAgent().clearDataForOrigin(this._securityOrigin, storageTypes.join(','));
+    var securityOriginManager = this._target.model(SDK.SecurityOriginManager);
+    securityOriginManager.clearDataForSecurityOrigin(this._securityOrigin, storageTypes.join(','));
 
     var set = new Set(storageTypes);
     var hasAll = set.has(Protocol.Storage.StorageType.All);
     if (set.has(Protocol.Storage.StorageType.Cookies) || hasAll) {
       var cookieModel = this._target.model(SDK.CookieModel);
       if (cookieModel)
         cookieModel.clear();
     }
 
     if (set.has(Protocol.Storage.StorageType.Indexeddb) || hasAll) {
@@ skipping 33 matching lines @@
 
     this._clearButton.disabled = true;
     var label = this._clearButton.textContent;
     this._clearButton.textContent = Common.UIString('Clearing...');
     setTimeout(() => {
       this._clearButton.disabled = false;
       this._clearButton.textContent = label;
     }, 500);
   }
 };