Remove support for the keygen tag

chrome/browser/content_settings/tab_specific_content_settings.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/content_settings/tab_specific_content_settings.h"
 
 #include <list>
 
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
@@ skipping 231 matching lines @@
   if (content_type == CONTENT_SETTINGS_TYPE_IMAGES ||
       content_type == CONTENT_SETTINGS_TYPE_JAVASCRIPT ||
       content_type == CONTENT_SETTINGS_TYPE_PLUGINS ||
       content_type == CONTENT_SETTINGS_TYPE_COOKIES ||
       content_type == CONTENT_SETTINGS_TYPE_POPUPS ||
       content_type == CONTENT_SETTINGS_TYPE_MIXEDSCRIPT ||
       content_type == CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC ||
       content_type == CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA ||
       content_type == CONTENT_SETTINGS_TYPE_PPAPI_BROKER ||
       content_type == CONTENT_SETTINGS_TYPE_AUTOMATIC_DOWNLOADS ||
-      content_type == CONTENT_SETTINGS_TYPE_MIDI_SYSEX ||
-      content_type == CONTENT_SETTINGS_TYPE_KEYGEN) {
+      content_type == CONTENT_SETTINGS_TYPE_MIDI_SYSEX) {
     const auto& it = content_settings_status_.find(content_type);
     if (it != content_settings_status_.end())
       return it->second.blocked;
   }
 
   return false;
 }
 
 bool TabSpecificContentSettings::IsSubresourceBlocked() const {
   return subresource_filter_enabled_;
@@ skipping 269 matching lines @@
 void TabSpecificContentSettings::OnGeolocationPermissionSet(
     const GURL& requesting_origin,
     bool allowed) {
   geolocation_usages_state_.OnPermissionSet(requesting_origin, allowed);
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_WEB_CONTENT_SETTINGS_CHANGED,
       content::Source<WebContents>(web_contents()),
       content::NotificationService::NoDetails());
 }
 
-void TabSpecificContentSettings::OnDidUseKeygen(const GURL& origin_url) {
-  HostContentSettingsMap* map = HostContentSettingsMapFactory::GetForProfile(
-      Profile::FromBrowserContext(web_contents()->GetBrowserContext()));
-  GURL url = web_contents()->GetLastCommittedURL();
-  if (map->GetContentSetting(url, url, CONTENT_SETTINGS_TYPE_KEYGEN,
-                             std::string()) != CONTENT_SETTING_ALLOW) {
-    OnContentBlocked(CONTENT_SETTINGS_TYPE_KEYGEN);
-  }
-}
-
 #if defined(OS_ANDROID) || defined(OS_CHROMEOS)
 void TabSpecificContentSettings::OnProtectedMediaIdentifierPermissionSet(
     const GURL& requesting_origin,
     bool allowed) {
   if (allowed) {
     OnContentAllowed(CONTENT_SETTINGS_TYPE_PROTECTED_MEDIA_IDENTIFIER);
   } else {
     OnContentBlocked(CONTENT_SETTINGS_TYPE_PROTECTED_MEDIA_IDENTIFIER);
   }
 }
@@ skipping 222 matching lines @@
       render_frame_host->GetRoutingID()));
 }
 
 bool TabSpecificContentSettings::OnMessageReceived(
     const IPC::Message& message,
     content::RenderFrameHost* render_frame_host) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(TabSpecificContentSettings, message)
     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_ContentBlocked,
                         OnContentBlockedWithDetail)
-    IPC_MESSAGE_HANDLER(ChromeViewHostMsg_DidUseKeygen, OnDidUseKeygen)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 void TabSpecificContentSettings::DidStartNavigation(
     content::NavigationHandle* navigation_handle) {
   if (!navigation_handle->IsInMainFrame() || navigation_handle->IsSamePage())
     return;
 
@@ skipping 104 matching lines @@
       static_cast<MicrophoneCameraStateFlags>(
           TabSpecificContentSettings::MICROPHONE_ACCESSED |
           TabSpecificContentSettings::MICROPHONE_BLOCKED |
           TabSpecificContentSettings::CAMERA_ACCESSED |
           TabSpecificContentSettings::CAMERA_BLOCKED);
   OnMediaStreamPermissionSet(
       web_contents()->GetLastCommittedURL(),
       media_blocked,
       std::string(), std::string(), std::string(), std::string());
 }