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

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

Index: third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js
diff --git a/third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js b/third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js
index b3965fd96b56633ff16bd236fa27dcdf124af2ce..a7de6f31f50006dbe5dbf901e4dc730d2eae94e9 100644
--- a/third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js
+++ b/third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js
@@ -507,14 +507,12 @@ WebInspector.NetworkLogView.prototype = {
      */
     selectFilmStripFrame: function(time)
     {
-        for (var divider of this._eventDividers)
-            divider.element.classList.toggle("network-frame-divider-selected", divider.time === time);
+        this._columns.selectFilmStripFrame(time);
     },
 
     clearFilmStripFrame: function()
     {
-        for (var divider of this._eventDividers)
-            divider.element.classList.toggle("network-frame-divider-selected", false);
+        this._columns.clearFilmStripFrame();
     },
 
     _refreshIfNeeded: function()
@@ -699,7 +697,6 @@ WebInspector.NetworkLogView.prototype = {
 
         this._mainRequestLoadTime = -1;
         this._mainRequestDOMContentLoadedTime = -1;
-        this._eventDividers = [];
 
         if (this._dataGrid) {
             this._dataGrid.rootNode().removeChildren();