[DevTools] Remove SDKModels' fromTarget methods

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

 // Copyright 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.
 /**
  * @unrestricted
  */
 SDK.SecurityOriginManager = class extends SDK.SDKModel {
   /**
    * @param {!SDK.Target} target
    */
   constructor(target) {
     super(target);
 
     /** @type {!Set<string>} */
     this._securityOrigins = new Set();
     this._mainSecurityOrigin = '';
   }
 
   /**
-   * @param {!SDK.Target} target
-   * @return {!SDK.SecurityOriginManager}
-   */
-  static fromTarget(target) {
-    return /** @type {!SDK.SecurityOriginManager} */ (target.model(SDK.SecurityOriginManager));
-  }
-
-  /**
    * @param {!Set<string>} securityOrigins
    */
   updateSecurityOrigins(securityOrigins) {
     var oldOrigins = this._securityOrigins;
     this._securityOrigins = securityOrigins;
 
     for (var origin of oldOrigins) {
       if (!this._securityOrigins.has(origin))
         this.dispatchEventToListeners(SDK.SecurityOriginManager.Events.SecurityOriginRemoved, origin);
     }
@@ skipping 28 matching lines @@
 };
 
 SDK.SDKModel.register(SDK.SecurityOriginManager, SDK.Target.Capability.None, false);
 
 /** @enum {symbol} */
 SDK.SecurityOriginManager.Events = {
   SecurityOriginAdded: Symbol('SecurityOriginAdded'),
   SecurityOriginRemoved: Symbol('SecurityOriginRemoved'),
   MainSecurityOriginChanged: Symbol('MainSecurityOriginChanged')
 };