(NOT FOR FINAL REVIEW)Refactor butter_bar.js for wallpaper manager and file manager to use.

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.
 
 /**
  * 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 454 matching lines @@
   };
 
   FileManager.prototype.initDataTransferOperations_ = function() {
     this.copyManager_ = new FileCopyManagerWrapper.getInstance(
         this.filesystem_.root);
     this.copyManager_.addEventListener('copy-progress',
                                        this.onCopyProgress_.bind(this));
     this.copyManager_.addEventListener('copy-operation-complete',
         this.onCopyManagerOperationComplete_.bind(this));
 
-    this.butterBar_ = new ButterBar(this.dialogDom_, this.copyManager_);
+    this.butterBar_ = new FileManagerButterBar(this.dialogDom_,
+                                               this.copyManager_);
 
     var controller = this.fileTransferController_ = new FileTransferController(
         GridItem.bind(null, this, false /* no checkbox */),
         this.copyManager_,
         this.directoryModel_);
     controller.attachDragSource(this.table_.list);
     controller.attachDropTarget(this.table_.list);
     controller.attachDragSource(this.grid_);
     controller.attachDropTarget(this.grid_);
     controller.attachDropTarget(this.rootsList_, true);
@@ skipping 3745 matching lines @@
         this.dialogDom_.querySelector('#default-action-separator');
 
     // TODO(dzvorygin): Here we use this hack, since 'hidden' is standard
     // attribute and we can't use it's setter as usual.
     this.openWithCommand_.__lookupSetter__('hidden').
         call(this.openWithCommand_, !(defaultItem && isMultiple));
     this.defaultActionMenuItem_.hidden = !defaultItem;
     defaultActionSeparator.hidden = !defaultItem;
   };
 })();