[Devtools] Change logic of DataGrid's padding-left for grouping

third_party/WebKit/Source/devtools/front_end/network/NetworkDataGridNode.js

 /*
  * Copyright (C) 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2008, 2009 Anthony Ricaud <rik@webkit.org>
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 657 matching lines @@
    */
   _arrayLength(array) {
     return array ? '' + array.length : '';
   }
 
   /**
    * @override
    * @protected
    */
   willAttach() {
+    super.willAttach();
     if (this._initiatorCell &&
         SDK.NetworkLog.initiatorInfoForRequest(this._request).type === SDK.NetworkRequest.InitiatorType.Script)
       this._initiatorCell.insertBefore(this._linkifiedInitiatorAnchor, this._initiatorCell.firstChild);
   }
 
   /**
    * @override
    */
   wasDetached() {
     if (this._linkifiedInitiatorAnchor)
@@ skipping 36 matching lines @@
    * @return {boolean}
    */
   _isFailed() {
     return (this._request.failed && !this._request.statusCode) || (this._request.statusCode >= 400);
   }
 
   /**
    * @param {!Element} cell
    */
   _renderNameCell(cell) {
-    var leftPadding = this.leftPadding ? this.leftPadding + 'px' : '';
-    cell.style.setProperty('padding-left', leftPadding);
     this._nameCell = cell;
     cell.addEventListener('dblclick', this._openInNewTab.bind(this), false);
     var iconElement;
     if (this._request.resourceType() === Common.resourceTypes.Image) {
       var previewImage = createElementWithClass('img', 'image-network-icon-preview');
       this._request.populateImageSource(previewImage);
 
       iconElement = createElementWithClass('div', 'icon');
       iconElement.appendChild(previewImage);
     } else {
@@ skipping 202 matching lines @@
   }
 
   /**
    * @override
    * @param {string} columnIdentifier
    * @return {!Element}
    */
   createCell(columnIdentifier) {
     var cell = this.createTD(columnIdentifier);
     if (columnIdentifier === 'name') {
-      var leftPadding = this.leftPadding ? this.leftPadding + 'px' : '';
-      cell.style.setProperty('padding-left', leftPadding);
       cell.classList.add('disclosure');
       this._setTextAndTitle(cell, this._displayName);
     }
     return cell;
   }
 
   /**
    * @override
    * @param {boolean=} supressSelectedEvent
    */
   select(supressSelectedEvent) {
     if (this.expanded) {
       this.collapse();
       return;
     }
     this.expand();
   }
 };