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

chrome/browser/resources/settings/search_engines_page/search_engines_page.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-engines-page' is the settings page
  * containing search engines settings.
  *
  * @group Chrome Settings Elements
  * @element settings-search-engines-page
@@ skipping 11 matching lines @@
     },
 
     /** @type {!Array<!SearchEngine>} */
     otherEngines: {
       type: Array,
       value: function() { return []; }
     },
 
     /** @private {boolean} */
     showAddSearchEngineDialog_: Boolean,
-
-    /** @private {boolean} */
-    otherSearchEnginesExpanded_: {
-      type: Boolean,
-      value: true,
-    },
   },
 
   /** @override */
   ready: function() {
     settings.SearchEnginesBrowserProxyImpl.getInstance().
         getSearchEnginesList().then(this.enginesChanged_.bind(this));
     this.addWebUIListener(
         'search-engines-changed', this.enginesChanged_.bind(this));
   },
 
@@ skipping 15 matching lines @@
       var dialog = this.$$('settings-search-engine-dialog');
       // Register listener to detect when the dialog is closed. Flip the boolean
       // once closed to force a restamp next time it is shown such that the
       // previous dialog's contents are cleared.
       dialog.addEventListener('iron-overlay-closed', function() {
         this.showAddSearchEngineDialog_ = false;
       }.bind(this));
     }.bind(this));
   },
 });