Introduce PrefRegistrySyncable, simplifying PrefServiceSyncable.

chrome/browser/browser_process_impl.cc

 // 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.
 
 #include "chrome/browser/browser_process_impl.h"
 
 #include <algorithm>
 #include <map>
 #include <set>
 #include <vector>
@@ skipping 795 matching lines @@
                                      policy_service(),
                                      NULL,
                                      pref_registry,
                                      false));
 
   // Initialize the prefs of the local state.
   //
   // TODO(joi): Once we clean up so none of the registration methods
   // need the PrefService pointer, this should happen before the call
   // to CreateLocalState.
-  chrome::RegisterLocalState(pref_registry, local_state_.get());
+  chrome::RegisterLocalState(local_state_.get(), pref_registry);
 
   pref_change_registrar_.Init(local_state_.get());
 
   // Initialize the notification for the default browser setting policy.
   pref_change_registrar_.Add(
       prefs::kDefaultBrowserSettingEnabled,
       base::Bind(&BrowserProcessImpl::ApplyDefaultBrowserPolicy,
                  base::Unretained(this)));
 
   int max_per_proxy = local_state_->GetInteger(prefs::kMaxConnectionsPerProxy);
@@ skipping 204 matching lines @@
 }
 
 void BrowserProcessImpl::OnAutoupdateTimer() {
   if (CanAutorestartForUpdate()) {
     DLOG(WARNING) << "Detected update.  Restarting browser.";
     RestartBackgroundInstance();
   }
 }
 
 #endif  // (defined(OS_WIN) || defined(OS_LINUX)) && !defined(OS_CHROMEOS)