DevTools: WI.Throttler goes promisified.

Source/devtools/front_end/ui_lazy/TimelineOverviewPane.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 196 matching lines @@
         this._overviewCalculator.setBounds(minimumBoundary, maximumBoundary);
         this._overviewGrid.setResizeEnabled(true);
         this._cursorEnabled = true;
     },
 
     scheduleUpdate: function()
     {
         this._updateThrottler.schedule(process.bind(this));
         /**
          * @this {WebInspector.TimelineOverviewPane}
-         * @param {!WebInspector.Throttler.FinishCallback} callback
+         * @return {!Promise.<undefined>}
          */
-        function process(callback)
+        function process()
         {
             this._update();
-            callback();
+            return Promise.resolve();
         }
     },
 
     _update: function()
     {
         if (!this.isShowing())
             return;
         this._overviewCalculator.setDisplayWindow(this._overviewGrid.clientWidth());
         for (var i = 0; i < this._overviewControls.length; ++i)
             this._overviewControls[i].update();
@@ skipping 389 matching lines @@
     },
 
     resetCanvas: function()
     {
         this._canvas.width = this.element.clientWidth * window.devicePixelRatio;
         this._canvas.height = this.element.clientHeight * window.devicePixelRatio;
     },
 
     __proto__: WebInspector.VBox.prototype
 }