Introduce profile for lock screen apps

chrome/browser/chromeos/policy/login_profile_policy_provider.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_CHROMEOS_POLICY_LOGIN_PROFILE_POLICY_PROVIDER_H_
 #define CHROME_BROWSER_CHROMEOS_POLICY_LOGIN_PROFILE_POLICY_PROVIDER_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "components/policy/core/common/configuration_policy_provider.h"
 #include "components/policy/core/common/policy_service.h"
 
 namespace policy {
 
-// Policy provider for the login profile. Since the login profile is not
-// associated with any user, it does not receive regular user policy. However,
-// several device policies that control features on the login screen surface as
-// user policies in the login profile.
+// Policy provider for the login/lock screen app profile. Since these profiles
+// are not associated with any user, it does not receive regular user policy.
+// However, several device policies that control features on the login/lock
+// screen surface as user policies in the login and the lock screen app profile.
 class LoginProfilePolicyProvider : public ConfigurationPolicyProvider,
                                    public PolicyService::Observer {
  public:
   explicit LoginProfilePolicyProvider(PolicyService* device_policy_service);
   ~LoginProfilePolicyProvider() override;
 
   // ConfigurationPolicyProvider:
   void Init(SchemaRegistry* registry) override;
   void Shutdown() override;
   void RefreshPolicies() override;
@@ skipping 14 matching lines @@
   bool waiting_for_device_policy_refresh_;
 
   base::WeakPtrFactory<LoginProfilePolicyProvider> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(LoginProfilePolicyProvider);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_CHROMEOS_POLICY_LOGIN_PROFILE_POLICY_PROVIDER_H_