Speculative revert by sheriff

ui/file_manager/file_manager/foreground/js/ui/cws_widget_container_error_dialog.js

Index: ui/file_manager/file_manager/foreground/js/ui/cws_widget_container_error_dialog.js
diff --git a/ui/file_manager/file_manager/foreground/js/ui/cws_widget_container_error_dialog.js b/ui/file_manager/file_manager/foreground/js/ui/cws_widget_container_error_dialog.js
deleted file mode 100644
index 28efbb432ce727495ccb43e48d174a424fff7f64..0000000000000000000000000000000000000000
--- a/ui/file_manager/file_manager/foreground/js/ui/cws_widget_container_error_dialog.js
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright 2015 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.
-
-/**
- * @param {HTMLElement} parentNode Node to be parent for this dialog.
- * @constructor
- * @extends {cr.ui.dialogs.BaseDialog}
- */
-function CWSWidgetContainerErrorDialog(parentNode) {
-  cr.ui.dialogs.BaseDialog.call(this, parentNode);
-}
-
-CWSWidgetContainerErrorDialog.prototype = {
-  __proto__: cr.ui.dialogs.BaseDialog.prototype
-};
-
-/**
- * Whether the dialog is showm.
- * @return {boolean}
- */
-CWSWidgetContainerErrorDialog.prototype.shown = function() {
-  return this.container_.classList.contains('shown');
-};
-
-/**
- * One-time initialization of DOM.
- * @private
- */
-CWSWidgetContainerErrorDialog.prototype.initDom_ = function() {
-  cr.ui.dialogs.BaseDialog.prototype.initDom_.call(this);
-  this.frame_.classList.add('cws-widget-error-dialog-frame');
-  var img = this.document_.createElement('div');
-  img.className = 'cws-widget-error-dialog-img';
-  this.frame_.insertBefore(img, this.text_);
-
-  this.title_.hidden = true;
-  this.closeButton_.hidden = true;
-  this.cancelButton_.hidden = true;
-  this.text_.classList.add('cws-widget-error-dialog-text');
-
-  // Don't allow OK button to lose focus, in order to prevent webview content
-  // from stealing focus.
-  // BaseDialog keeps focus by removing all other focusable elements from tab
-  // order (by setting their tabIndex to -1). This doesn't work for webviews
-  // because the webview embedder cannot access the webview DOM tree, and thus
-  // fails to remove elements in the webview from tab order.
-  this.okButton_.addEventListener('blur', this.refocusOkButton_.bind(this));
-};
-
-/**
- * Focuses OK button.
- * @private
- */
-CWSWidgetContainerErrorDialog.prototype.refocusOkButton_ = function() {
-  if (this.shown())
-    this.okButton_.focus();
-};