Use TimelineUIUtils to create BeginFrame divider

Source/devtools/front_end/timeline/TracingTimelineUIUtils.js

 // Copyright 2014 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
  * @extends {WebInspector.TimelineUIUtils}
  */
 WebInspector.TracingTimelineUIUtils = function()
 {
@@ skipping 84 matching lines @@
      */
     generateDetailsContent: function(record, model, linkifier, callback, loadedFromFile)
     {
         if (!(model instanceof WebInspector.TracingTimelineModel))
             throw new Error("Illegal argument.");
         var tracingTimelineModel = /** @type {!WebInspector.TracingTimelineModel} */ (model);
         WebInspector.TracingTimelineUIUtils.buildTraceEventDetails(record.traceEvent(), tracingTimelineModel, linkifier, callback, loadedFromFile, record.target());
     },
 
     /**
+     * @return {!Element}
+     */
+    createBeginFrameDivider: function()
+    {
+        return this.createEventDivider(WebInspector.TracingTimelineModel.RecordType.BeginFrame);
+    },
+
+    /**
      * @param {string} recordType
      * @param {string=} title
      * @return {!Element}
      */
     createEventDivider: function(recordType, title)
     {
         return WebInspector.TracingTimelineUIUtils._createEventDivider(recordType, title);
     },
 
     /**
@@ skipping 597 matching lines @@
     else if (recordType === recordTypes.TimeStamp)
         eventDivider.className += " resources-orange-divider";
     else if (recordType === recordTypes.BeginFrame)
         eventDivider.className += " timeline-frame-divider";
 
     if (title)
         eventDivider.title = title;
 
     return eventDivider;
 }