Move preference MACs to the protected preference stores.

chrome/browser/prefs/profile_pref_store_manager.h

 // Copyright 2014 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_PREFS_PROFILE_PREF_STORE_MANAGER_H_
 #define CHROME_BROWSER_PREFS_PROFILE_PREF_STORE_MANAGER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 70 matching lines @@
   // Deletes stored hashes for the managed profile.
   void ResetPrefHashStore();
 
   // Creates a PersistentPrefStore providing access to the user preferences of
   // the managed profile. An optional |validation_delegate| will be notified
   // of the status of each tracked preference as they are checked.
   PersistentPrefStore* CreateProfilePrefStore(
       const scoped_refptr<base::SequencedTaskRunner>& io_task_runner,
       TrackedPreferenceValidationDelegate* validation_delegate);
 
-  // Checks the presence/version of the hash store for the managed profile and
-  // creates or updates it if necessary. Completes asynchronously and is safe if
-  // the preferences/hash store are concurrently loaded/manipulated by another
-  // task.
-  void UpdateProfileHashStoreIfRequired(
-      const scoped_refptr<base::SequencedTaskRunner>& io_task_runner);
-
   // Initializes the preferences for the managed profile with the preference
   // values in |master_prefs|. Acts synchronously, including blocking IO.
   // Returns true on success.
   bool InitializePrefsFromMasterPrefs(
       const base::DictionaryValue& master_prefs);
 
   // Creates a single-file PrefStore as was used in M34 and earlier. Used only
   // for testing migration.
   PersistentPrefStore* CreateDeprecatedCombinedProfilePrefStore(
       const scoped_refptr<base::SequencedTaskRunner>& io_task_runner);
 
  private:
   // Returns a PrefHashStoreImpl for the managed profile. Should only be called
   // if |kPlatformSupportsPreferenceTracking|.
   scoped_ptr<PrefHashStoreImpl> GetPrefHashStoreImpl();
 
+  scoped_ptr<PrefHashStoreImpl> GetLegacyPrefHashStoreImpl();
+
   const base::FilePath profile_path_;
   const std::vector<PrefHashFilter::TrackedPreferenceMetadata>
       tracking_configuration_;
   const size_t reporting_ids_count_;
   const std::string seed_;
   const std::string device_id_;
   PrefService* local_state_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfilePrefStoreManager);
 };
 
 #endif  // CHROME_BROWSER_PREFS_PROFILE_PREF_STORE_MANAGER_H_