Introduce PrefRegistrySyncable, simplifying PrefServiceSyncable.

chrome/browser/ui/webui/sync_promo/sync_promo_ui.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/ui/webui/sync_promo/sync_promo_ui.h"
 
 #include "base/command_line.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/first_run/first_run.h"
 #include "chrome/browser/google/google_util.h"
+#include "chrome/browser/prefs/pref_registry_syncable.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_info_cache.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/signin/signin_manager.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
 #include "chrome/browser/sync/profile_sync_service.h"
 #include "chrome/browser/sync/profile_sync_service_factory.h"
 #include "chrome/browser/ui/webui/options/core_options_handler.h"
 #include "chrome/browser/ui/webui/sync_promo/sync_promo_handler.h"
@@ skipping 104 matching lines @@
     return false;
 
   // Display the signin promo if the user is not signed in.
   SigninManager* signin = SigninManagerFactory::GetForProfile(
       profile->GetOriginalProfile());
   return signin->GetAuthenticatedUsername().empty();
 #endif
 }
 
 // static
-void SyncPromoUI::RegisterUserPrefs(PrefServiceSyncable* prefs) {
-  prefs->RegisterIntegerPref(prefs::kSyncPromoStartupCount, 0,
-                             PrefServiceSyncable::UNSYNCABLE_PREF);
-  prefs->RegisterBooleanPref(prefs::kSyncPromoUserSkipped, false,
-                             PrefServiceSyncable::UNSYNCABLE_PREF);
-  prefs->RegisterBooleanPref(prefs::kSyncPromoShowOnFirstRunAllowed, true,
-                             PrefServiceSyncable::UNSYNCABLE_PREF);
+void SyncPromoUI::RegisterUserPrefs(PrefRegistrySyncable* registry) {
+  registry->RegisterIntegerPref(prefs::kSyncPromoStartupCount, 0,
+                                PrefRegistrySyncable::UNSYNCABLE_PREF);
+  registry->RegisterBooleanPref(prefs::kSyncPromoUserSkipped, false,
+                                PrefRegistrySyncable::UNSYNCABLE_PREF);
+  registry->RegisterBooleanPref(prefs::kSyncPromoShowOnFirstRunAllowed, true,
+                                PrefRegistrySyncable::UNSYNCABLE_PREF);
 
-  SyncPromoHandler::RegisterUserPrefs(prefs);
+  SyncPromoHandler::RegisterUserPrefs(registry);
 }
 
 // static
 bool SyncPromoUI::ShouldShowSyncPromoAtStartup(Profile* profile,
                                                bool is_new_profile) {
   DCHECK(profile);
 
   if (!ShouldShowSyncPromo(profile))
     return false;
 
@@ skipping 142 matching lines @@
       g_force_web_based_signin_flow;
 #else
   return false;
 #endif
 }
 
 // static
 void SyncPromoUI::ForceWebBasedSigninFlowForTesting(bool force) {
   g_force_web_based_signin_flow = force;
 }