TimelinePanel: do not collapse record when user changes panel.

Source/devtools/front_end/TimelineFlameChart.js

 /*
  * Copyright (C) 2014 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 172 matching lines @@
         for (var category in fillStyles) {
             if (fillStyles.hasOwnProperty(category))
                 colorGenerator.setColorPairForID(category, fillStyles[category], fillStyles[category]);
         }
         WebInspector.TimelineFlameChart._colorGenerator = colorGenerator;
     }
     return WebInspector.TimelineFlameChart._colorGenerator;
 }
 
 WebInspector.TimelineFlameChart.prototype = {
+    refreshRecords: function()
+    {
+    },
+
     reset: function()
     {
         this._dataProvider.reset();
         this._mainView.changeWindow(0, 1);
     },
 
     _onRecordingStarted: function()
     {
         this._gotFirstRecord = false;
     },
@@ skipping 46 matching lines @@
     /**
      * @return {?WebInspector.View}
      */
     searchableView: function()
     {
         return null;
     },
 
     __proto__: WebInspector.View.prototype
 }