Show confirmation dialog when copy/move operation affect other members.

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.
  *
@@ skipping 627 matching lines @@
    */
   FileManager.prototype.initDataTransferOperations_ = function() {
     // CopyManager are required for 'Delete' operation in
     // Open and Save dialogs. But drag-n-drop and copy-paste are not needed.
     if (this.dialogType !== DialogType.FULL_PAGE)
       return;
 
     this.fileTransferController_ = new FileTransferController(
         assert(this.document_), assert(this.ui_.listContainer),
         assert(this.ui_.directoryTree), this.ui_.multiProfileShareDialog,
+        this.ui_.confirmationHandler.bind(this.ui_),
         assert(this.fileBrowserBackground_.progressCenter),
         assert(this.fileOperationManager_), assert(this.metadataModel_),
         assert(this.thumbnailModel_), assert(this.directoryModel_),
         assert(this.volumeManager_), assert(this.selectionHandler_),
         CommandUtil.shouldShowMenuItemsForEntry.bind(
             null, assert(this.volumeManager_)));
   };
 
   /**
    * One-time initialization of commands.
@@ skipping 798 matching lines @@
   FileManager.prototype.debugMe = function() {
     var out = 'Debug information.\n';
 
     out += '1. VolumeManagerWrapper\n' +
         this.volumeManager_.toString() + '\n';
 
     out += 'End of debug information.';
     console.log(out);
   };
 })();