DevTools: allow whitelist of timeline events to be pushed live although in bufferEvent mode.

Source/devtools/front_end/TimelineFrameModel.js

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 92 matching lines @@
     {
         var recordTypes = WebInspector.TimelineModel.RecordType;
         var programRecord = record.type === recordTypes.Program ? record : null;
 
         // Start collecting main frame
         if (programRecord) {
             if (!this._aggregatedMainThreadWork && this._findRecordRecursively(WebInspector.TimelineFrameModel._mainFrameMarkers, programRecord))
                 this._aggregatedMainThreadWork = {};
         }
 
-        var records = this._mergingBuffer.process(record.thread, programRecord ? record.children || [] : [record]);
+        var records;
+        if (this._model.bufferEvents())
+            records = [record];
+        else
+            records = this._mergingBuffer.process(record.thread, programRecord ? record.children || [] : [record]);
         for (var i = 0; i < records.length; ++i) {
             if (records[i].thread)
                 this._addBackgroundRecord(records[i]);
             else
                 this._addMainThreadRecord(programRecord, records[i]);
         }
     },
 
     /**
      * @param {!WebInspector.TimelineModel.Record} record
@@ skipping 218 matching lines @@
         this._updateCpuTime();
     },
 
     _updateCpuTime: function()
     {
         this.cpuTime = 0;
         for (var key in this.timeByCategory)
             this.cpuTime += this.timeByCategory[key];
     }
 }