Revert of [Devtools] Fix network timeline canvas selection splitview

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.
 
 /**
  * @constructor
  * @param {!WebInspector.NetworkLogView} networkLogView
  * @param {!WebInspector.NetworkTransferTimeCalculator} timeCalculator
  * @param {!WebInspector.NetworkTransferDurationCalculator} durationCalculator
  * @param {!WebInspector.Setting} networkLogLargeRowsSetting
@@ skipping 741 matching lines @@
         if (!Runtime.experiments.isEnabled("canvasNetworkTimeline"))
             return;
         // TODO(allada) Move this code into the code above.
         if (gridMode) {
             this._splitWidget.showBoth();
             this._activeScroller = this._timelineScroller;
             this._timelineScroller.scrollTop = this._dataGridScroller.scrollTop;
             this._dataGridScroller.style.overflow = "hidden";
             this._dataGrid.setScrollContainer(this._timelineScroller);
         } else {
-            this._splitWidget.hideSidebar();
+            this._splitWidget.hideMain();
             this._activeScroller = this._dataGridScroller;
             this._dataGridScroller.style.overflow = "overlay";
             this._dataGrid.setScrollContainer(this._dataGridScroller);
         }
     },
 
     /**
      * @param {!WebInspector.NetworkLogViewColumns.Descriptor} columnConfig
      */
     _toggleColumnVisibility: function(columnConfig)
@@ skipping 345 matching lines @@
     {
         if (Runtime.experiments.isEnabled("canvasNetworkTimeline")) {
             this._shownEventDividers.delete(WebInspector.NetworkLogViewColumns._filmStripDividerColor);
             this._redrawTimelineColumn();
             return;
         }
         for (var divider of this._eventDividers)
             divider.element.classList.toggle("network-frame-divider-selected", false);
     }
 };