[DevTools] Remove SDKModels' fromTarget methods

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

 // Copyright 2017 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.
 
 SDK.CookieModel = class extends SDK.SDKModel {
   /**
    * @param {!SDK.Target} target
    */
   constructor(target) {
     super(target);
@@ skipping 14 matching lines @@
       cookie.addAttribute('httpOnly');
     if (protocolCookie['secure'])
       cookie.addAttribute('secure');
     if (protocolCookie['sameSite'])
       cookie.addAttribute('sameSite', protocolCookie['sameSite']);
     cookie.setSize(protocolCookie['size']);
     return cookie;
   }
 
   /**
-   * @param {!SDK.Target} target
-   * @return {!SDK.CookieModel}
-   */
-  static fromTarget(target) {
-    return /** @type {!SDK.CookieModel} */ (target.model(SDK.CookieModel));
-  }
-
-  /**
    * @param {!SDK.Cookie} cookie
    * @param {string} resourceURL
    * @return {boolean}
    */
   static cookieMatchesResourceURL(cookie, resourceURL) {
     var url = resourceURL.asParsedURL();
     if (!url || !SDK.CookieModel.cookieDomainMatchesResourceDomain(cookie.domain(), url.host))
       return false;
     return (
         url.path.startsWith(cookie.path()) && (!cookie.port() || url.port === cookie.port()) &&
@@ skipping 66 matching lines @@
   getCookiesForDomain(domain, callback) {
     var resourceURLs = [];
     /**
      * @param {!SDK.Resource} resource
      */
     function populateResourceURLs(resource) {
       var url = resource.documentURL.asParsedURL();
       if (url && (!domain || url.securityOrigin() === domain))
         resourceURLs.push(resource.url);
     }
-    SDK.ResourceTreeModel.fromTarget(this.target()).forAllResources(populateResourceURLs);
+    var resourceTreeModel = this.target().model(SDK.ResourceTreeModel);
+    if (resourceTreeModel)
+      resourceTreeModel.forAllResources(populateResourceURLs);
     this.getCookiesAsync(resourceURLs, callback);
   }
 
   /**
    * @param {!Array<!SDK.Cookie>} cookies
    * @param {function()=} callback
    */
   _deleteAll(cookies, callback) {
     var networkAgent = this.target().networkAgent();
     function deleteCookie(cookie) {
       return new Promise(resolve => networkAgent.deleteCookie(cookie.name(), cookie.url(), resolve));
     }
     Promise.all(cookies.map(deleteCookie)).then(callback || function() {});
   }
 };
 
 SDK.SDKModel.register(SDK.CookieModel, SDK.Target.Capability.Network, false);