Options2: Pull the trigger.

chrome/browser/resources/options2/profiles_icon_grid.js

+// Copyright (c) 2011 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('options', function() {
+  const ListItem = cr.ui.ListItem;
+  const Grid = cr.ui.Grid;
+  const ListSingleSelectionModel = cr.ui.ListSingleSelectionModel;
+
+  /**
+   * Creates a new profile icon grid item.
+   * @param {Object} iconURL The profile icon URL.
+   * @constructor
+   * @extends {cr.ui.GridItem}
+   */
+  function ProfilesIconGridItem(iconURL) {
+    var el = cr.doc.createElement('span');
+    el.iconURL_ = iconURL;
+    ProfilesIconGridItem.decorate(el);
+    return el;
+  }
+
+  /**
+   * Decorates an element as a profile grid item.
+   * @param {!HTMLElement} el The element to decorate.
+   */
+  ProfilesIconGridItem.decorate = function(el) {
+    el.__proto__ = ProfilesIconGridItem.prototype;
+    el.decorate();
+  };
+
+  ProfilesIconGridItem.prototype = {
+    __proto__: ListItem.prototype,
+
+    /** @inheritDoc */
+    decorate: function() {
+      ListItem.prototype.decorate.call(this);
+      var imageEl = cr.doc.createElement('img');
+      imageEl.className = 'profile-icon';
+      imageEl.src = this.iconURL_;
+      this.appendChild(imageEl);
+
+      this.className = 'profile-icon-grid-item';
+    },
+  };
+
+  var ProfilesIconGrid = cr.ui.define('grid');
+
+  ProfilesIconGrid.prototype = {
+    __proto__: Grid.prototype,
+
+    /** @inheritDoc */
+    decorate: function() {
+      Grid.prototype.decorate.call(this);
+      this.selectionModel = new ListSingleSelectionModel();
+    },
+
+    /** @inheritDoc */
+    createItem: function(iconURL) {
+      return new ProfilesIconGridItem(iconURL);
+    },
+  };
+
+  return {
+    ProfilesIconGrid: ProfilesIconGrid
+  };
+});
+