[DevTools] Remove SDKModels' fromTarget methods

third_party/WebKit/Source/devtools/front_end/sdk/CSSStyleSheetHeader.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.
 /**
  * @implements {Common.ContentProvider}
  * @unrestricted
  */
 SDK.CSSStyleSheetHeader = class {
   /**
    * @param {!SDK.CSSModel} cssModel
@@ skipping 61 matching lines @@
    * @return {string}
    */
   resourceURL() {
     return this.isViaInspector() ? this._viaInspectorResourceURL() : this.sourceURL;
   }
 
   /**
    * @return {string}
    */
   _viaInspectorResourceURL() {
-    var resourceTreeModel = SDK.ResourceTreeModel.fromTarget(this.target());
-    var frame = resourceTreeModel.frameForId(this.frameId);
+    var frame = this.target().model(SDK.ResourceTreeModel).frameForId(this.frameId);

[caseq, 2017/03/29 17:48:42]

this._cssModel.target()... and nuke the remaining mentions of target() (i.e.
line 53 et al.)?

[dgozman, 2017/04/01 00:22:44]

Done.

     console.assert(frame);
     var parsedURL = new Common.ParsedURL(frame.url);
     var fakeURL = 'inspector://' + parsedURL.host + parsedURL.folderPathComponents;
     if (!fakeURL.endsWith('/'))
       fakeURL += '/';
     fakeURL += 'inspector-stylesheet';
     return fakeURL;
   }
 
   /**
@@ skipping 53 matching lines @@
     this.requestContent().then(performSearch);
   }
 
   /**
    * @return {boolean}
    */
   isViaInspector() {
     return this.origin === 'inspector';
   }
 };