MD Settings: create a shared handler/browser proxy to control extensions

chrome/test/data/webui/settings/test_search_engines_browser_proxy.js

 // Copyright 2016 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('settings_search', function() {
   /**
    * A test version of SearchEnginesBrowserProxy. Provides helper methods
    * for allowing tests to know when a method was called, as well as
    * specifying mock responses.
    *
    * @constructor
    * @implements {settings.SearchEnginesBrowserProxy}
    * @extends {settings.TestBrowserProxy}
    */
   var TestSearchEnginesBrowserProxy = function() {
     settings.TestBrowserProxy.call(this, [
       'getSearchEnginesList',
       'removeSearchEngine',
       'searchEngineEditCancelled',
       'searchEngineEditCompleted',
       'searchEngineEditStarted',
       'setDefaultSearchEngine',
       'validateSearchEngineInput',
-      'manageExtension',
-      'disableExtension',
     ]);
 
     /** @private {!SearchEnginesInfo} */
     this.searchEnginesInfo_ = {defaults: [], others: [], extensions: []};
   };
 
   TestSearchEnginesBrowserProxy.prototype = {
     __proto__: settings.TestBrowserProxy.prototype,
 
     /** @override */
@@ skipping 33 matching lines @@
     getSearchEnginesList: function() {
       this.methodCalled('getSearchEnginesList');
       return Promise.resolve(this.searchEnginesInfo_);
     },
 
     /** @override */
     validateSearchEngineInput: function(fieldName, fieldValue) {
       this.methodCalled('validateSearchEngineInput');
       return Promise.resolve(true);
     },
-
-    /** @override */
-    manageExtension: function(extensionId) {
-      this.methodCalled('manageExtension', extensionId);
-    },
-
-    /** @override */
-    disableExtension: function(extensionId) {
-      this.methodCalled('disableExtension', extensionId);
-    },
   };
 
   /**
    * @param {boolean} canBeDefault
    * @param {boolean} canBeEdited
    * @param {boolean} canBeRemoved
    * @return {!SearchEngine}
    */
   function createSampleSearchEngine(canBeDefault, canBeEdited, canBeRemoved) {
     return {
@@ skipping 10 matching lines @@
       url: "https://search.foo.com/search?p=%s",
       urlLocked: false,
     };
   }
 
   return {
     createSampleSearchEngine: createSampleSearchEngine,
     TestSearchEnginesBrowserProxy: TestSearchEnginesBrowserProxy,
   };
 });