[DevTools] Simplify Popover API

third_party/WebKit/Source/devtools/front_end/network/NetworkLogViewColumns.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
  */
 Network.NetworkLogViewColumns = class {
   /**
    * @param {!Network.NetworkLogView} networkLogView
    * @param {!Network.NetworkTransferTimeCalculator} timeCalculator
@@ skipping 73 matching lines @@
       columnConfig.id = columnConfig.id;
       if (columnConfig.subtitle)
         columnConfig.titleDOMFragment = this._makeHeaderFragment(columnConfig.title, columnConfig.subtitle);
       this._columns.push(columnConfig);
     }
     this._loadColumns();
 
     this._popoverHelper = new UI.PopoverHelper(this._networkLogView.element);
     this._popoverHelper.initializeCallbacks(
         this._getPopoverAnchor.bind(this), this._showPopover.bind(this), this._onHidePopover.bind(this));
+    this._popoverHelper.setHasPadding(true);
 
     /** @type {!DataGrid.SortableDataGrid<!Network.NetworkNode>} */
     this._dataGrid =
         new DataGrid.SortableDataGrid(this._columns.map(Network.NetworkLogViewColumns._convertToDataGridDescriptor));
     this._dataGrid.element.addEventListener('mousedown', event => {
       if (!this._dataGrid.selectedNode && event.button)
         event.consume();
     }, true);
 
     this._dataGridScroller = this._dataGrid.scrollContainer;
@@ skipping 427 matching lines @@
     var anchor = element.enclosingNodeOrSelfWithClass('network-script-initiated');
     if (anchor && anchor.request) {
       var initiator = /** @type {!SDK.NetworkRequest} */ (anchor.request).initiator();
       if (initiator && initiator.stack)
         return anchor;
     }
   }
 
   /**
    * @param {!Element} anchor
-   * @param {!UI.Popover} popover
+   * @param {!UI.GlassPane} popover
+   * @return {!Promise<boolean>}
    */
   _showPopover(anchor, popover) {
     var request = /** @type {!SDK.NetworkRequest} */ (anchor.request);
     var initiator = /** @type {!Protocol.Network.Initiator} */ (request.initiator());
     var content = Components.DOMPresentationUtils.buildStackTracePreviewContents(
         request.target(), this._popupLinkifier, initiator.stack);
-    popover.showForAnchor(content, anchor);
+    popover.contentElement.appendChild(content);
+    return Promise.resolve(true);
   }
 
   _onHidePopover() {
     this._popupLinkifier.reset();
   }
 
   /**
    * @param {!Array<number>} times
    * @param {string} className
    */
@@ skipping 245 matching lines @@
 /**
  * @enum {string}
  */
 Network.NetworkLogViewColumns.WaterfallSortIds = {
   StartTime: 'startTime',
   ResponseTime: 'responseReceivedTime',
   EndTime: 'endTime',
   Duration: 'duration',
   Latency: 'latency'
 };