DevTools: WI.Throttler goes promisified.

Source/devtools/front_end/network/NetworkTimeCalculator.js

 /*
  * Copyright (C) 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2008, 2009 Anthony Ricaud <rik@webkit.org>
  * Copyright (C) 2011 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 234 matching lines @@
      * @param {number} percentage
      * @return {number}
      */
     percentageToTime: function(percentage)
     {
         return percentage * this.boundarySpan() / 100 + this.minimumBoundary();
     },
 
     _boundaryChanged: function()
     {
-        this._boundryChangedEventThrottler.schedule(this.dispatchEventToListeners.bind(this, WebInspector.NetworkTimeCalculator.Events.BoundariesChanged));
+        this._boundryChangedEventThrottler.schedule(dispatchEvent.bind(this));
+
+        /**
+         * @return {!Promise.<undefined>}
+         * @this {WebInspector.NetworkTimeCalculator}
+         */
+        function dispatchEvent()
+        {
+            this.dispatchEventToListeners(WebInspector.NetworkTimeCalculator.Events.BoundariesChanged);
+            return Promise.resolve();
+        }
     },
 
     /**
      * @param {number} eventTime
      */
     updateBoundariesForEventTime: function(eventTime)
     {
         if (eventTime === -1 || this.startAtZero)
             return;
 
@@ skipping 163 matching lines @@
      * @param {!WebInspector.NetworkRequest} request
      * @return {number}
      */
     _upperBound: function(request)
     {
         return request.duration;
     },
 
     __proto__: WebInspector.NetworkTimeCalculator.prototype
 }