Introduce profile for lock screen apps

chrome/browser/chromeos/policy/user_policy_manager_factory_chromeos.cc

Index: chrome/browser/chromeos/policy/user_policy_manager_factory_chromeos.cc
diff --git a/chrome/browser/chromeos/policy/user_policy_manager_factory_chromeos.cc b/chrome/browser/chromeos/policy/user_policy_manager_factory_chromeos.cc
index b0681d7a3dc7629e239e8e25f5cdabd5959ed78c..37b53c4362cf7546ef78ce2a5bc09015862a2020 100644
--- a/chrome/browser/chromeos/policy/user_policy_manager_factory_chromeos.cc
+++ b/chrome/browser/chromeos/policy/user_policy_manager_factory_chromeos.cc
@@ -147,8 +147,10 @@ UserPolicyManagerFactoryChromeOS::CreateManagerForProfile(
   const base::CommandLine* command_line =
       base::CommandLine::ForCurrentProcess();
   // Don't initialize cloud policy for the signin profile.
-  if (chromeos::ProfileHelper::IsSigninProfile(profile))
+  if (chromeos::ProfileHelper::IsSigninProfile(profile) ||
+      chromeos::ProfileHelper::IsLockScreenAppProfile(profile)) {
     return {};
+  }
 
   // |user| should never be nullptr except for the signin profile. This object
   // is created as part of the Profile creation, which happens right after