Made the visibility of Buttom bar updated at the end of drag selection.

chrome/browser/resources/file_manager/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.
 
 'use strict';
 
 /**
  * This variable is checked in SelectFileDialogExtensionBrowserTest.
  * @type {number}
  */
@@ skipping 1145 matching lines @@
     this.table_.list.addEventListener('blur', fileListBlurBound);
     this.grid_.addEventListener('blur', fileListBlurBound);
 
     var dragStartBound = this.onDragStart_.bind(this);
     this.table_.list.addEventListener('dragstart', dragStartBound);
     this.grid_.addEventListener('dragstart', dragStartBound);
 
     var dragEndBound = this.onDragEnd_.bind(this);
     this.table_.list.addEventListener('dragend', dragEndBound);
     this.grid_.addEventListener('dragend', dragEndBound);
+    // This event is published by DragSelector because drag end event is not
+    // published at the end of drag selection.
+    this.table_.list.addEventListener('dragselectionend', dragEndBound);

[yoshiki, 2013/06/20 03:11:25]

The grid should be handled as well, right?

[hirono, 2013/06/20 03:55:03]

It is not needed yet.
Currently the grid view does not support the drag selection.
I'm planning on supporting the drag selection on the grid view for M30,
and at that time, we should handle the dragselectionend event.

 
     // TODO(mtomasz, yoshiki): Create sidebar earlier, and here just attach
     // the directory model.
     this.initSidebar_();
 
     this.table_.addEventListener('column-resize-end',
                                  this.updateStartupPrefs_.bind(this));
 
     // Restore preferences.
     this.directoryModel_.sortFileList(
@@ skipping 2631 matching lines @@
    * Set the flag to hide the selecting checkboxes.
    * This is the alternative for about:flags and to be removed.
    * TODO(hirono): Remove this function after the user test.
    * @param {boolean} flag If it's true, the selecting checkboxes are hidden.
    */
   window.setNoCheckboxesFlag = function(flag) {
     fileManager.noCheckboxes_ = flag;
     fileManager.updateStartupPrefs_();
   };
 })();