[Devtools] Bug fix of event dividers not showing in network panel

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.Setting} networkLogLargeRowsSetting
  */
 WebInspector.NetworkLogViewColumns = function(networkLogView, networkLogLargeRowsSetting)
@@ skipping 797 matching lines @@
         this._timelineGrid.hideEventDividers();
     },
 
     showEventDividers: function()
     {
         if (Runtime.experiments.isEnabled("canvasNetworkTimeline"))
             return;
         this._timelineGrid.showEventDividers();
     },
 
+    /**
+     * @param {number} time
+     */
+    selectFilmStripFrame: function(time)
+    {
+        for (var divider of this._eventDividers)
+            divider.element.classList.toggle("network-frame-divider-selected", divider.time === time);
+    },
+
+    clearFilmStripFrame: function()
+    {
+        for (var divider of this._eventDividers)
+            divider.element.classList.toggle("network-frame-divider-selected", false);
+    },
+
     _updateRowsSize: function()
     {
         if (Runtime.experiments.isEnabled("canvasNetworkTimeline"))
             return;
         this._timelineGrid.element.classList.toggle("small", !this._networkLogLargeRowsSetting.get());
     }
 }