Parametrize TimelinePresentationModel with coalescable record types

Source/devtools/front_end/timeline/TimelinePanel.js

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2012 Intel 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.
@@ skipping 255 matching lines @@
             this._lazyFrameModel = frameModel;
         }
         return this._lazyFrameModel;
     },
 
     /**
      * @return {!WebInspector.TimelineView}
      */
     _timelineView: function()
     {
-        if (!this._lazyTimelineView)
-            this._lazyTimelineView = new WebInspector.TimelineView(this, this._model);
+        if (!this._lazyTimelineView) {
+            var coalescableRecordTypes = this._tracingTimelineModel ? WebInspector.TracingTimelineUIUtils.coalescableRecordTypes : WebInspector.TimelineUIUtils.coalescableRecordTypes;
+            this._lazyTimelineView = new WebInspector.TimelineView(this, this._model, coalescableRecordTypes);
+        }
         return this._lazyTimelineView;
     },
 
     /**
      * @return {!WebInspector.View}
      */
     _layersView: function()
     {
         if (this._lazyLayersView)
             return this._lazyLayersView;
@@ skipping 1166 matching lines @@
      * @param {!WebInspector.TimelineModel.Record} record
      * @return {boolean}
      */
     accept: function(record)
     {
         return !this._hiddenRecords[record.type()];
     },
 
     __proto__: WebInspector.TimelineModel.Filter.prototype
 }