Adding <keygen> Content Setting (core)

components/content_settings/core/common/pref_names.cc

Index: components/content_settings/core/common/pref_names.cc
diff --git a/components/content_settings/core/common/pref_names.cc b/components/content_settings/core/common/pref_names.cc
index 0c21850ec5800fc82e7ba79c799e5e737a35b611..aff347fe5b202043204acad3271b3a61fab89b22 100644
--- a/components/content_settings/core/common/pref_names.cc
+++ b/components/content_settings/core/common/pref_names.cc
@@ -28,6 +28,8 @@ const char kManagedDefaultImagesSetting[] =
     "profile.managed_default_content_settings.images";
 const char kManagedDefaultJavaScriptSetting[] =
     "profile.managed_default_content_settings.javascript";
+const char kManagedDefaultKeygenSetting[] =
+    "profile.managed_default_content_settings.keygen";
 const char kManagedDefaultNotificationsSetting[] =
     "profile.managed_default_content_settings.notifications";
 const char kManagedDefaultMediaStreamSetting[] =
@@ -55,6 +57,10 @@ const char kManagedJavaScriptAllowedForUrls[] =
     "profile.managed_javascript_allowed_for_urls";
 const char kManagedJavaScriptBlockedForUrls[] =
     "profile.managed_javascript_blocked_for_urls";
+const char kManagedKeygenAllowedForUrls[] =
+    "profile.managed_keygen_allowed_for_urls";
+const char kManagedKeygenBlockedForUrls[] =
+    "profile.managed_keygen_blocked_for_urls";
 const char kManagedNotificationsAllowedForUrls[] =
     "profile.managed_notifications_allowed_for_urls";
 const char kManagedNotificationsBlockedForUrls[] =