DevTools: Move frame rate overview timeline out of experiment.

Source/devtools/front_end/timeline/TimelineEventOverview.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 59 matching lines @@
 
     /**
      * @override
      */
     update: function()
     {
         this.resetCanvas();
         var threads = this._model.virtualThreads();
         var mainThreadEvents = this._model.mainThreadEvents();
         var networkHeight = this._canvas.clientHeight
-            - WebInspector.TimelineEventOverview._fullStripHeight
+            - 2 * WebInspector.TimelineEventOverview._fullStripHeight
             - 2 * WebInspector.TimelineEventOverview._smallStripHeight;
         var position = 0;
         if (Runtime.experiments.isEnabled("inputEventsOnTimelineOverview")) {
             var inputHeight = this._drawInputEvents(mainThreadEvents, position, WebInspector.TimelineEventOverview._smallStripHeight);
             position += inputHeight;
             networkHeight -= inputHeight;
         }
-        if (Runtime.experiments.isEnabled("frameRateOnEventsOverview"))
-            networkHeight -= WebInspector.TimelineEventOverview._fullStripHeight;
         position += this._drawNetwork(mainThreadEvents, position, networkHeight);
         position += this._drawStackedUtilizationChart(mainThreadEvents, position, WebInspector.TimelineEventOverview._fullStripHeight);
         for (var thread of threads.filter(function(thread) { return !thread.isWorker(); }))
             this._drawEvents(thread.events, position, WebInspector.TimelineEventOverview._smallStripHeight);
         position += WebInspector.TimelineEventOverview._smallStripHeight;
         for (var thread of threads.filter(function(thread) { return thread.isWorker(); }))
             this._drawEvents(thread.events, position, WebInspector.TimelineEventOverview._smallStripHeight);
         position += WebInspector.TimelineEventOverview._smallStripHeight;
-        if (Runtime.experiments.isEnabled("frameRateOnEventsOverview"))
-            position += this._drawFrames(position, WebInspector.TimelineEventOverview._fullStripHeight);
+        position += this._drawFrames(position, WebInspector.TimelineEventOverview._fullStripHeight);
         console.assert(position === this._canvas.clientHeight);
     },
 
     /**
      * @param {!Array.<!WebInspector.TracingModel.Event>} events
      * @param {number} position
      * @param {number} height
      * @return {number}
      */
     _drawInputEvents: function(events, position, height)
@@ skipping 428 matching lines @@
             counters[group] = this._quantDuration;
             this._callback(counters);
             interval -= this._quantDuration;
         }
         this._counters = [];
         this._counters[group] = interval;
         this._lastTime = time;
         this._remainder = this._quantDuration - interval;
     }
 }