Lock profile before sign in when force sign in is enabled.

chrome/browser/profiles/profile_attributes_entry.h

 // Copyright 2015 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_PROFILES_PROFILE_ATTRIBUTES_ENTRY_H_
 #define CHROME_BROWSER_PROFILES_PROFILE_ATTRIBUTES_ENTRY_H_
 
 #include <stddef.h>
 
 #include <string>
@@ skipping 106 matching lines @@
   void SetAvatarIconIndex(size_t icon_index);
 
   // Get the statistics of the profile.
   void SetStatsBrowsingHistory(int value);
   void SetStatsPasswords(int value);
   void SetStatsBookmarks(int value);
   void SetStatsSettings(int value);
 
   void SetAuthInfo(const std::string& gaia_id, const base::string16& user_name);
 
+  // Lock/Unlock the profile, should be called only if force-sign-in is enabled.
+  void LockForceSigninProfile(bool is_lock);
+
  private:
   // These members are an implementation detail meant to smooth the migration
   // of the ProfileInfoCache to the ProfileAttributesStorage interface. They can
   // be safely removed once the ProfileInfoCache stops using indices
   // internally.
   // TODO(anthonyvd): Remove ProfileInfoCache related implementation details
   // when this class holds the members required to fulfill its own contract.
   friend class ProfileInfoCache;
   void Initialize(ProfileInfoCache* cache, const base::FilePath& path);
   size_t profile_index() const;
   ProfileInfoCache* profile_info_cache_;
   base::FilePath profile_path_;
 
+  // A separate boolean flag indicates whether the signin is required when force
+  // signin is enabled. So that the profile locked status will be stored in
+  // memory only and can be easily reset once the policy is turned off.
+  bool is_force_signin_profile_locked_ = false;
+  bool is_force_signin_enabled_;
+
   DISALLOW_COPY_AND_ASSIGN(ProfileAttributesEntry);
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_ATTRIBUTES_ENTRY_H_