Remove support for the keygen tag

chrome/test/data/webui/settings/site_list_tests.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 Suite of tests for site-list. */
 cr.define('site_list', function() {
   function registerTests() {
     suite('SiteList', function() {
       /**
        * A site list element created before each test.
@@ skipping 40 matching lines @@
             },
             {
               embeddingOrigin: 'https://foo-block.com:443',
               origin: 'https://foo-block.com:443',
               setting: 'block',
               source: 'preference',
             },
           ],
           images: [],
           javascript: [],
-          keygen: [],
           mic: [],
           notifications: [],
           plugins: [],
           popups: [],
           unsandboxed_plugins: [],
         }
       };
 
       /**
        * An example pref with mixed schemes (present and absent).
@@ skipping 69 matching lines @@
           ],
           images: [],
           javascript: [
             {
               origin: 'https://[*.]foo.com',
               embeddingOrigin: '*',
               setting: 'allow',
               source: 'preference',
             },
           ],
-          keygen: [],
           mic: [],
           notifications: [],
           plugins: [],
           popups: [],
           unsandboxed_plugins: [],
         }
       };
 
       /**
        * An example pref with multiple categories and multiple allow/block
@@ skipping 15 matching lines @@
             },
             {
               embeddingOrigin: 'https://bar.com',
               origin: 'https://bar.com',
               setting: 'block',
               source: 'preference',
             },
           ],
           images: [],
           javascript: [],
-          keygen: [],
           mic: [],
           notifications: [
             {
               embeddingOrigin: 'https://google.com',
               origin: 'https://google.com',
               setting: 'block',
               source: 'preference',
             },
             {
               embeddingOrigin: 'https://bar.com',
@@ skipping 653 matching lines @@
           assertEquals(settings.ContentSettingsTypes.JAVASCRIPT, args[2]);
           assertEquals('allow', args[3]);
         });
       });
     });
   }
   return {
     registerTests: registerTests,
   };
 });