MD Settings: adjust iron-list focus row behaviors.

chrome/browser/resources/settings/focusable_iron_list_item_behavior.js

Index: chrome/browser/resources/settings/focusable_iron_list_item_behavior.js
diff --git a/chrome/browser/resources/settings/focusable_iron_list_item_behavior.js b/chrome/browser/resources/settings/focusable_iron_list_item_behavior.js
deleted file mode 100644
index 20e58c5b7db3efe8ef953cdc7253e5ea82a0e0e5..0000000000000000000000000000000000000000
--- a/chrome/browser/resources/settings/focusable_iron_list_item_behavior.js
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright 2017 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.
-
-/** @polymerBehavior */
-var FocusableIronListItemBehavior = {
-  properties: {
-    /** @private {boolean} */
-    focusedByKey_: Boolean,
-  },
-
-  listeners: {
-    'keyup': 'onKeyUp_',
-    'keydown': 'onKeyDown_',
-    'mousedown': 'onMouseDown_',
-    'blur': 'onBlur_',
-  },
-
-  /**
-   * Flag that `this` is focused by keyboard, so mouse click doesn't apply
-   * the .no-outline class.
-   * @private
-   */
-  onKeyUp_: function() {
-    // If refocusing on child, row itself isn't focused by keyboard anymore.
-    if (!this.$$('[focused]'))
-      this.focusedByKey_ = true;
-  },
-
-  /**
-   * Unflag when moving away via keyboard (e.g. tabbing onto its children).
-   * @param {!Event} event
-   * @private
-   */
-  onKeyDown_: function(event) {
-    this.focusedByKey_ = false;
-
-    // For these types of items, don't propagate enter to iron-list's listener.
-    if (event.key == 'Enter')
-      event.stopPropagation();
-  },
-
-  /**
-   * When clicking on a row, do not show focus outline if the element wasn't
-   * already in focus.
-   * @private
-   */
-  onMouseDown_: function() {
-    if (!this.focusedByKey_)
-      this.classList.add('no-outline');
-  },
-
-  /**
-   * Reset when moving away from the row entirely.
-   * @private
-   */
-  onBlur_: function() {
-    this.classList.remove('no-outline');
-    this.focusedByKey_ = false;
-  },
-};