Lock only permitted where a supervised user is or was.

chrome/common/pref_names.cc

Index: chrome/common/pref_names.cc
diff --git a/chrome/common/pref_names.cc b/chrome/common/pref_names.cc
index a038deef1fd2c488076076820a3f4473e1695537..3caacfc3a79123f0da6e85f755796ce0223bdbb9 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -1185,6 +1185,10 @@ const char kDefaultSupervisedUserFilteringBehavior[] =
 const char kSupervisedUserCreationAllowed[] =
     "profile.managed_user_creation_allowed";
 
+// Whether this browser has or hadat least one supervised user.

[noms (inactive), 2014/10/08 14:31:51]

nit: typo

[Mike Lerman, 2014/10/10 18:25:54]

Thi code is removed.

+const char kSupervisedUserExistsOrExisted[] =
+    "profile.managed_user_exists_or_existed";
+
 // List pref containing the users supervised by this user.
 const char kSupervisedUsers[] = "profile.managed_users";