[Devtools] Template fromTarget() function calls to model

third_party/WebKit/Source/devtools/front_end/security/SecurityModel.js

 // Copyright 2015 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
  */
 Security.SecurityModel = class extends SDK.SDKModel {
   /**
    * @param {!SDK.Target} target
    */
   constructor(target) {
     super(Security.SecurityModel, target);
     this._dispatcher = new Security.SecurityDispatcher(this);
     this._securityAgent = target.securityAgent();
     target.registerSecurityDispatcher(this._dispatcher);
     this._securityAgent.enable();
   }
 
   /**
    * @param {!SDK.Target} target
    * @return {?Security.SecurityModel}
    */
   static fromTarget(target) {
-    var model = /** @type {?Security.SecurityModel} */ (target.model(Security.SecurityModel));
+    var model = target.model(Security.SecurityModel);
     if (!model)
       model = new Security.SecurityModel(target);
     return model;
   }
 
   /**
    * @param {!Protocol.Security.SecurityState} a
    * @param {!Protocol.Security.SecurityState} b
    * @return {number}
    */
@@ skipping 65 matching lines @@
    * @param {!Array<!Protocol.Security.SecurityStateExplanation>=} explanations
    * @param {!Protocol.Security.InsecureContentStatus=} insecureContentStatus
    * @param {boolean=} schemeIsCryptographic
    */
   securityStateChanged(securityState, explanations, insecureContentStatus, schemeIsCryptographic) {
     var pageSecurityState = new Security.PageSecurityState(
         securityState, explanations || [], insecureContentStatus || null, schemeIsCryptographic || false);
     this._model.dispatchEventToListeners(Security.SecurityModel.Events.SecurityStateChanged, pageSecurityState);
   }
 };