Remove old downloads UI; Material Design version is now the default.

chrome/browser/resources/downloads/focus_row.js

-// 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.
-
-cr.define('downloads', function() {
-  /**
-   * @param {!Element} root
-   * @param {?Element} boundary
-   * @constructor
-   * @extends {cr.ui.FocusRow}
-   */
-  function FocusRow(root, boundary) {
-    cr.ui.FocusRow.call(this, root, boundary);
-
-    assert(this.addItem('name', '[is="action-link"].name'));
-    assert(this.addItem('url', '.src-url'));
-    assert(this.addItem('show-retry', '.safe .controls .show'));
-    assert(this.addItem('show-retry', '.retry'));
-    assert(this.addItem('pause-resume', '.pause'));
-    assert(this.addItem('pause-resume', '.resume'));
-    assert(this.addItem('remove', '.remove'));
-    assert(this.addItem('cancel', '.cancel'));
-    assert(this.addItem('restore-save', '.restore'));
-    assert(this.addItem('restore-save', '.save'));
-    assert(this.addItem('remove-discard', '.remove'));
-    assert(this.addItem('remove-discard', '.discard'));
-  }
-
-  FocusRow.prototype = {__proto__: cr.ui.FocusRow.prototype};
-
-  return {FocusRow: FocusRow};
-});