Audio Player: Close the player on Ctrl-W.

ui/file_manager/audio_player/js/audio_player.js

 // Copyright (c) 2012 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.
 
 /**
  * Overrided metadata worker's path.
  * @type {string}
  */
 ContentMetadataProvider.WORKER_SCRIPT = '/js/metadata_worker.js';
 
@@ skipping 309 matching lines @@
 };
 
 /**
  * Handles keydown event to open inspector with shortcut keys.
  *
  * @param {Event} event KeyDown event.
  * @private
  */
 AudioPlayer.prototype.onKeyDown_ = function(event) {
   switch (util.getKeyModifiers(event) + event.keyIdentifier) {
+    case 'Ctrl-U+0057': // Ctrl+W => Close the player.
+      chrome.app.window.current().close();
+      break;
+
     // Handle debug shortcut keys.
     case 'Ctrl-Shift-U+0049': // Ctrl+Shift+I
       chrome.fileManagerPrivate.openInspector('normal');
       break;
     case 'Ctrl-Shift-U+004A': // Ctrl+Shift+J
       chrome.fileManagerPrivate.openInspector('console');
       break;
     case 'Ctrl-Shift-U+0043': // Ctrl+Shift+C
       chrome.fileManagerPrivate.openInspector('element');
       break;
@@ skipping 138 matching lines @@
   // TODO(yoshiki): Handle error in better way.
   // TODO(yoshiki): implement artwork (metadata.thumbnail)
   this.title = metadata.mediaTitle || this.getDefaultTitle();
   this.artist = error || metadata.mediaArtist || this.getDefaultArtist();
 };
 
 // Starts loading the audio player.
 window.addEventListener('DOMContentLoaded', function(e) {
   AudioPlayer.load();
 });