Remove support for the keygen tag

chrome/browser/ui/website_settings/website_settings_ui.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/ui/website_settings/website_settings_ui.h"
 
 #include "base/macros.h"
 #include "chrome/browser/content_settings/host_content_settings_map_factory.h"
 #include "chrome/browser/plugins/plugin_utils.h"
 #include "chrome/browser/plugins/plugins_field_trial.h"
@@ skipping 91 matching lines @@
      IDR_ALLOWED_NOTIFICATION},
     {CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC, IDS_WEBSITE_SETTINGS_TYPE_MIC,
      IDR_BLOCKED_MIC, IDR_ALLOWED_MIC},
     {CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA, IDS_WEBSITE_SETTINGS_TYPE_CAMERA,
      IDR_BLOCKED_CAMERA, IDR_ALLOWED_CAMERA},
     {CONTENT_SETTINGS_TYPE_AUTOMATIC_DOWNLOADS,
      IDS_AUTOMATIC_DOWNLOADS_TAB_LABEL, IDR_BLOCKED_DOWNLOADS,
      IDR_ALLOWED_DOWNLOADS},
     {CONTENT_SETTINGS_TYPE_MIDI_SYSEX, IDS_WEBSITE_SETTINGS_TYPE_MIDI_SYSEX,
      IDR_BLOCKED_MIDI_SYSEX, IDR_ALLOWED_MIDI_SYSEX},
-    {CONTENT_SETTINGS_TYPE_KEYGEN, IDS_WEBSITE_SETTINGS_TYPE_KEYGEN,
-     IDR_BLOCKED_KEYGEN, IDR_ALLOWED_KEYGEN},
     {CONTENT_SETTINGS_TYPE_BACKGROUND_SYNC,
      IDS_WEBSITE_SETTINGS_TYPE_BACKGROUND_SYNC, IDR_BLOCKED_BACKGROUND_SYNC,
      IDR_ALLOWED_BACKGROUND_SYNC},
     // Autoplay is Android-only at the moment, and the Origin Info bubble in
     // Android ignores these block/allow icon pairs, so we can specify 0 there.
     {CONTENT_SETTINGS_TYPE_AUTOPLAY, IDS_WEBSITE_SETTINGS_TYPE_AUTOPLAY, 0, 0},
 };
 
 std::unique_ptr<WebsiteSettingsUI::SecurityDescription>
 CreateSecurityDescription(int summary_id, int details_id) {
@@ skipping 272 matching lines @@
   }
   return resource_id;
 }
 
 // static
 const gfx::Image& WebsiteSettingsUI::GetConnectionIcon(
     WebsiteSettings::SiteConnectionStatus status) {
   ResourceBundle& rb = ResourceBundle::GetSharedInstance();
   return rb.GetNativeImageNamed(GetConnectionIconID(status));
 }