MD Settings: Manage search engines, polish to match latest mocks.

chrome/browser/resources/settings/search_engines_page/search_engine_entry.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.
 
 /**
  * @fileoverview 'settings-search-engine-entry' is a component for showing a
  * search engine with its name, domain and query URL.
  *
  * @group Chrome Settings Elements
  * @element settings-search-engine-entry
  */
 Polymer({
   is: 'settings-search-engine-entry',
 
   properties: {
     /** @type {!SearchEngine} */
     engine: Object,
 
     /** @private {boolean} */
     showEditSearchEngineDialog_: Boolean,
+
+    /** @type {boolean} */
+    isDefault: {
+      reflectToAttribute: true,
+      type: Boolean,
+      computed: 'computeIsDefault_(engine)'
+    },
   },
 
   /** @private {!settings.SearchEnginesBrowserProxy} */
   browserProxy_: null,
 
+  /** @override */
   created: function() {
     this.browserProxy_ = settings.SearchEnginesBrowserProxyImpl.getInstance();
   },
 
+  /**
+   * @return {boolean}
+   * @private
+   */
+  computeIsDefault_: function() {
+    return this.engine.default;
+  },
+
   /** @private */
   onDeleteTap_: function() {
     this.browserProxy_.removeSearchEngine(this.engine.modelIndex);
   },
 
   /** @private */
   onEditTap_: function() {
     this.closePopupMenu_();
 
     this.showEditSearchEngineDialog_ = true;
@@ skipping 12 matching lines @@
   onMakeDefaultTap_: function() {
     this.closePopupMenu_();
     this.browserProxy_.setDefaultSearchEngine(this.engine.modelIndex);
   },
 
   /** @private */
   closePopupMenu_: function() {
     this.$$('iron-dropdown').close();
   },
 });