Fix prefs registration in SyncPrefs.

chrome/browser/sync/sync_prefs.h

 // Copyright (c) 2012 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_SYNC_SYNC_PREFS_H_
 #define CHROME_BROWSER_SYNC_SYNC_PREFS_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 36 matching lines @@
 class SyncPrefs : NON_EXPORTED_BASE(public base::NonThreadSafe),
                   public base::SupportsWeakPtr<SyncPrefs> {
  public:
   // |pref_service| may be NULL (for unit tests), but in that case no
   // setter methods should be called.  Does not take ownership of
   // |pref_service|.
   explicit SyncPrefs(PrefService* pref_service);
 
   virtual ~SyncPrefs();
 
-  static void RegisterUserPrefs(PrefService* prefs,
-                                PrefRegistrySyncable* registry);
+  static void RegisterUserPrefs(PrefRegistrySyncable* registry);
 
   // Checks if sync is enabled for the profile that owns |io_data|. This must
   // be invoked on the IO thread, and can be used to check if sync is enabled
   // on that thread.
   static bool IsSyncAccessibleOnIOThread(ProfileIOData* io_data);
 
   void AddSyncPrefObserver(SyncPrefObserver* sync_pref_observer);
   void RemoveSyncPrefObserver(SyncPrefObserver* sync_pref_observer);
 
   // Clears important sync preferences.
@@ skipping 94 matching lines @@
   // etc.
   typedef std::map<syncer::ModelType, syncer::ModelTypeSet> PrefGroupsMap;
   PrefGroupsMap pref_groups_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncPrefs);
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_SYNC_PREFS_H_