Implement remaining chrome.searchEnginesPrivate methods.

chrome/browser/resources/settings/search_page/search_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
  * 'cr-settings-search-page' is the settings page containing search settings.
  *
  * Example:
  *
@@ skipping 70 matching lines @@
     defaultEngineGuid: '',
   },
 
   /** @override */
   created: function() {
     this.searchEngines = [];
   },
 
   /** @override */
   domReady: function() {
-    chrome.searchEnginesPrivate.onDefaultSearchEnginesChanged.addListener(
+    chrome.searchEnginesPrivate.onSearchEnginesChanged.addListener(
         this.updateSearchEngines_.bind(this));
-    chrome.searchEnginesPrivate.getDefaultSearchEngines(
+    chrome.searchEnginesPrivate.getSearchEngines(
         this.updateSearchEngines_.bind(this));
   },
 
   /**
    * Persists the new default search engine back to Chrome. Called when the
    * user selects a new default in the search engines dropdown.
    */
   defaultEngineGuidChanged: function() {
     chrome.searchEnginesPrivate.setSelectedSearchEngine(this.defaultEngineGuid);
   },
 
 
   /**
-   * Updates the list of search engines with the given |engines|.
-   * @param {!Array<!SearchEngine>} engines
+   * Updates the list of default search engines based on the given |engines|.
+   * @param {!Array<!SearchEngine>} engines All the search engines.
    * @private
    */
   updateSearchEngines_: function(engines) {
-    this.searchEngines = engines;
-    for (var i = 0; i < engines.length; i++) {
-      if (engines[i].isSelected) {
-        this.defaultEngineGuid = engines[i].guid;
+    var defaultEngines = [];
+
+    engines.forEach(function(engine) {
+      if (engine.type ==
+          chrome.searchEnginesPrivate.SearchEngineType.DEFAULT) {
+        defaultEngines.push(engine);
+        if (engine.isSelected) {
+          this.defaultEngineGuid = engine.guid;
+        }
       }
-    }
+    }, this);
+
+    this.searchEngines = defaultEngines;
   }
 });