Adding <keygen> Content Setting (UI)

components/content_settings/core/browser/host_content_settings_map.cc

Index: components/content_settings/core/browser/host_content_settings_map.cc
diff --git a/components/content_settings/core/browser/host_content_settings_map.cc b/components/content_settings/core/browser/host_content_settings_map.cc
index fd9cbbf37d03f61f0e2e1c75163c2d63f0875b0d..8bdafdc61325c45e895c3ab75a9718c8ff6b31fd 100644
--- a/components/content_settings/core/browser/host_content_settings_map.cc
+++ b/components/content_settings/core/browser/host_content_settings_map.cc
@@ -344,7 +344,8 @@ void HostContentSettingsMap::SetNarrowestContentSetting(
              type == CONTENT_SETTINGS_TYPE_PUSH_MESSAGING) {
     primary_pattern = ContentSettingsPattern::FromURL(primary_url);
     secondary_pattern = ContentSettingsPattern::Wildcard();
-  } else if (type == CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC ||
+  } else if (type == CONTENT_SETTINGS_TYPE_KEYGEN ||
+             type == CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC ||
              type == CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA ||
              type == CONTENT_SETTINGS_TYPE_NOTIFICATIONS) {
     primary_pattern = ContentSettingsPattern::FromURLNoWildcard(primary_url);