DevTools: skip animation when resetting Timeline flame chart to initial state

Source/devtools/front_end/components/FlameChart.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 416 matching lines @@
             delete this._cancelWindowTimesAnimation;
         }
     },
 
     /**
      * @param {number} startTime
      * @param {number} endTime
      */
     setWindowTimes: function(startTime, endTime)
     {
-        if (this._muteAnimation || this._timeWindowLeft === 0 || this._timeWindowRight === Infinity) {
+        if (this._muteAnimation || this._timeWindowLeft === 0 || this._timeWindowRight === Infinity || (startTime === 0 && endTime === Infinity)) {
             // Initial setup.
             this._timeWindowLeft = startTime;
             this._timeWindowRight = endTime;
             this.scheduleUpdate();
             return;
         }
 
         this._cancelAnimation();
         this._cancelWindowTimesAnimation = WebInspector.animateFunction(this._animateWindowTimes.bind(this),
             [{from: this._timeWindowLeft, to: startTime}, {from: this._timeWindowRight, to: endTime}], 5,
@@ skipping 730 matching lines @@
     {
         this._highlightedMarkerIndex = -1;
         this._highlightedEntryIndex = -1;
         this._selectedEntryIndex = -1;
         this._textWidth = {};
         this.update();
     },
 
     __proto__: WebInspector.HBox.prototype
 }