[DevTools] Remove SDKModels' fromTarget methods

third_party/WebKit/Source/devtools/front_end/sdk/LayerTreeBase.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.
 /** @typedef {!{
         rect: !Protocol.DOM.Rect,
         snapshot: !SDK.PaintProfilerSnapshot
     }}
 */
 SDK.SnapshotWithRect;
 
@@ skipping 128 matching lines @@
 
 /**
  * @unrestricted
  */
 SDK.LayerTreeBase = class {
   /**
    * @param {?SDK.Target} target
    */
   constructor(target) {
     this._target = target;
-    this._domModel = target ? SDK.DOMModel.fromTarget(target) : null;
+    this._domModel = target ? target.model(SDK.DOMModel) : null;
     this._layersById = {};
     this._root = null;
     this._contentRoot = null;
     /** @type {!Map<number, ?SDK.DOMNode>} */
     this._backendNodeIdToNode = new Map();
   }
 
   /**
    * @return {?SDK.Target}
    */
@@ skipping 100 matching lines @@
   }
 
   /**
    * @param {number} id
    * @return {?SDK.DOMNode}
    */
   _nodeForId(id) {
     return this._domModel ? this._domModel.nodeForId(id) : null;
   }
 };