Video Player: Fix the condition of 'ended' property

ui/file_manager/video_player/js/cast/cast_video_element.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 'use strict';
 
 /**
  * Interval for updating media info (in ms).
  * @type {number}
  * @const
@@ skipping 101 matching lines @@
   },
 
   /**
    * If this video is ended or not.
    * @type {boolean}
    */
   get ended() {
     if (!this.castMedia_)
       return true;
 
-   return this.castMedia_.idleReason === chrome.cast.media.IdleReason.FINISHED;
+   return !this.playInProgress &&
+     this.castMedia_.idleReason === chrome.cast.media.IdleReason.FINISHED;
   },
 
   /**
    * TimeRange object that represents the seekable ranges of the media
    * resource.
    * @type {TimeRanges}
    */
   get seekable() {
     return {
       length: 1,
@@ skipping 282 matching lines @@
       this.dispatchEvent(new Event('durationchange'));
     }
 
     // Media is being unloaded.
     if (!alive) {
       this.unloadMedia_();
       return;
     }
   },
 };