[AudioPlayer] Enable new audio-player by default

chrome/browser/resources/file_manager/background/js/background.js

Index: chrome/browser/resources/file_manager/background/js/background.js
diff --git a/chrome/browser/resources/file_manager/background/js/background.js b/chrome/browser/resources/file_manager/background/js/background.js
index adbac0a1631ab08fdd63a2e1c3a0727751707106..9e0d28e05b58467b70a5ecfe0317c56db9b7ac98 100644
--- a/chrome/browser/resources/file_manager/background/js/background.js
+++ b/chrome/browser/resources/file_manager/background/js/background.js
@@ -691,29 +691,29 @@ var audioPlayer = null;
 var audioPlayerInitializationQueue = new AsyncUtil.Queue();
 
 audioPlayerInitializationQueue.run(function(callback) {
-  chrome.commandLinePrivate.hasSwitch(
-      'file-manager-enable-new-audio-player',
-      function(newAudioPlayerEnabled) {
-        var audioPlayerHTML =
-            newAudioPlayerEnabled ? 'audio_player.html' : 'mediaplayer.html';
-
-        /**
-         * Audio player window create options.
-         * @type {Object}
-         */
-        var audioPlayerCreateOptions = Object.freeze({
-          type: 'panel',
-          hidden: true,
-          minHeight: newAudioPlayerEnabled ? 116 : (35 + 58),
-          minWidth: newAudioPlayerEnabled ? 292 : 280,
-          height: newAudioPlayerEnabled ? 356 : (35 + 58),
-          width: newAudioPlayerEnabled ? 292 : 280,
-        });
+  // TODO(yoshiki): Remove '--file-manager-enable-new-audio-player' flag after
+  // the feature is launched.
+  var newAudioPlayerEnabled = true;
 
-        audioPlayer = new SingletonAppWindowWrapper(audioPlayerHTML,
-                                                    audioPlayerCreateOptions);
-        callback();
-      });
+  var audioPlayerHTML =
+      newAudioPlayerEnabled ? 'audio_player.html' : 'mediaplayer.html';
+
+  /**
+   * Audio player window create options.
+   * @type {Object}
+   */
+  var audioPlayerCreateOptions = Object.freeze({
+      type: 'panel',
+      hidden: true,
+      minHeight: newAudioPlayerEnabled ? 116 : (35 + 58),
+      minWidth: newAudioPlayerEnabled ? 292 : 280,
+      height: newAudioPlayerEnabled ? 356 : (35 + 58),
+      width: newAudioPlayerEnabled ? 292 : 280,
+  });
+
+  audioPlayer = new SingletonAppWindowWrapper(audioPlayerHTML,
+                                              audioPlayerCreateOptions);
+  callback();
 });
 
 /**