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..90f1f848da6d5a161add970a6ca4f66fef3b20d6 100644
--- a/components/content_settings/core/common/pref_names.cc
+++ b/components/content_settings/core/common/pref_names.cc
@@ -36,6 +36,8 @@ const char kManagedDefaultPluginsSetting[] =
     "profile.managed_default_content_settings.plugins";
 const char kManagedDefaultPopupsSetting[] =
     "profile.managed_default_content_settings.popups";
+const char kManagedDefaultKeygenSetting[] =
+    "profile.managed_default_content_settings.keygen";
 
 // Preferences that are exclusively used to store managed
 // content settings patterns.
@@ -67,5 +69,9 @@ const char kManagedPopupsAllowedForUrls[] =
     "profile.managed_popups_allowed_for_urls";
 const char kManagedPopupsBlockedForUrls[] =
     "profile.managed_popups_blocked_for_urls";
+const char kManagedKeygenAllowedForUrls[] =
+    "profile.managed_keygen_allowed_for_urls";
+const char kManagedKeygenBlockedForUrls[] =
+    "profile.managed_keygen_blocked_for_urls";
 
 }  // namespace prefs