DevTools: Speedup flamechart window scrolling

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 223 matching lines @@
     /**
      * @param {!WebInspector.Event} event
      */
     _onWindowChanged: function(event)
     {
         this._windowStartTime = event.data.startTime;
         this._windowEndTime = event.data.endTime;
 
         for (var i = 0; i < this._currentViews.length; ++i)
             this._currentViews[i].setWindowTimes(this._windowStartTime, this._windowEndTime);
-        this._updateSelectedRangeStats();
     },
 
     /**
      * @param {number} windowStartTime
      * @param {number} windowEndTime
      */
     requestWindowTimes: function(windowStartTime, windowEndTime)
     {
         this._overviewPane.requestWindowTimes(windowStartTime, windowEndTime);
     },
@@ skipping 1190 matching lines @@
      * @param {!WebInspector.TimelineModel.Record} record
      * @return {boolean}
      */
     accept: function(record)
     {
         return !this._regex || this._uiUtils.testContentMatching(record, this._regex);
     },
 
     __proto__: WebInspector.TimelineModel.Filter.prototype
 }