Integrate registry_hash_store_contents with the rest of tracked prefs.

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 <stddef.h>
 
 #include <memory>
@@ skipping 81 matching lines @@
       const scoped_refptr<base::SequencedTaskRunner>& io_task_runner);
 
  private:
   // Returns a PrefHashStore for the managed profile. Should only be called
   // if |kPlatformSupportsPreferenceTracking|. |use_super_mac| determines
   // whether the returned object will calculate, store, and validate super MACs
   // (and, by extension, accept non-null newly protected preferences as
   // TrustedInitialized).
   std::unique_ptr<PrefHashStore> GetPrefHashStore(bool use_super_mac);
 
+  // On Windows, returns a PrefHashStore for the managed profile for use with
+  // |RegistryHashStoreContentsWin|. Returns nullptr otherwise.
+  std::unique_ptr<PrefHashStore> MaybeGetRegistryPrefHashStore();

[gab, 2016/08/03 18:19:34]

  // Returns a PrefHashStore that can be used for extra out-of-band
  // verifications on this platform (or null if none for this platform).
  std::unique_ptr<PrefHashStore> GetExternalVerificationPrefHashStore();

[proberge, 2016/08/04 00:13:45]

Done.

+
   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_