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

chrome/browser/resources/settings/search_engines_page/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.
 
 /**
  * @fileoverview A helper object used from the "Manage search engines" section
  * to interact with the browser.
  */
 
 /**
@@ skipping 50 matching lines @@
      * @return {!Promise<!SearchEnginesInfo>}
      */
     getSearchEnginesList: function() {},
 
     /**
      * @param {string} fieldName
      * @param {string} fieldValue
      * @return {!Promise<boolean>}
      */
     validateSearchEngineInput: function(fieldName, fieldValue) {},
-
-    /** @param {string} extensionId */
-    disableExtension: function(extensionId) {},
-
-    /** @param {string} extensionId */
-    manageExtension: function(extensionId) {},
   };
 
   /**
    * @constructor
    * @implements {settings.SearchEnginesBrowserProxy}
    */
   function SearchEnginesBrowserProxyImpl() {}
   // The singleton instance_ is replaced with a test version of this wrapper
   // during testing.
   cr.addSingletonGetter(SearchEnginesBrowserProxyImpl);
@@ skipping 29 matching lines @@
     /** @override */
     getSearchEnginesList: function() {
       return cr.sendWithPromise('getSearchEnginesList');
     },
 
     /** @override */
     validateSearchEngineInput: function(fieldName, fieldValue) {
       return cr.sendWithPromise(
           'validateSearchEngineInput', fieldName, fieldValue);
     },
-
-    /** @override */
-    disableExtension: function(extensionId) {
-      chrome.send('disableExtension', [extensionId]);
-    },
-
-    /** @override */
-    manageExtension: function(extensionId) {
-      window.open('chrome://extensions?id=' + extensionId);
-    },
   };
 
   return {
     SearchEnginesBrowserProxy: SearchEnginesBrowserProxy,
     SearchEnginesBrowserProxyImpl: SearchEnginesBrowserProxyImpl,
   };
 });