Eliminate last vestigages of the command system design.

ui/file_manager/file_manager/foreground/js/file_manager.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.
 
 /**
  * FileManager constructor.
  *
  * FileManager objects encapsulate the functionality of the file selector
  * dialogs, as well as the full screen file manager application (though the
  * latter is not yet implemented).
@@ skipping 467 matching lines @@
     assert(this.ui_.textContextMenu);
 
     this.commandHandler = new CommandHandler(this);
 
     // Kick the import enabled promise to be sure it is loaded
     // (and cached) for use by code that requires synchronous
     // access (e.g. Commands).
     importer.importEnabled().then(
         function(enabled) {
           if (enabled) {
-            var commandAdapter = new importer.ButtonCommandAdapter(this);
             this.importController_ = new importer.ImportController(
                 new importer.RuntimeControllerEnvironment(this),
                 /** @type {!importer.MediaScanner} */ (
                     this.mediaScanner_),
                 /** @type {!importer.ImportRunner} */ (
                     this.mediaImportHandler_),
-                commandAdapter.update.bind(commandAdapter));
+                new importer.RuntimeCommandWidget());
           }
         }.bind(this));
 
     // TODO(hirono): Move the following block to the UI part.
     var commandButtons = this.dialogDom_.querySelectorAll('button[command]');
     for (var j = 0; j < commandButtons.length; j++)
       CommandButton.decorate(commandButtons[j]);
 
     var inputs = this.dialogDom_.querySelectorAll(
         'input[type=text], input[type=search], textarea');
@@ skipping 770 matching lines @@
       out += this.initializeQueue_.pendingTasks[key].toString() + '\n';
     }.bind(this));
 
     out += '2. VolumeManagerWrapper\n' +
         this.volumeManager_.toString() + '\n';
 
     out += 'End of debug information.';
     console.log(out);
   };
 })();