Remove most occurences of PrefRegistrySyncable::UNSYNCABLE_PREF

chrome/browser/prefs/incognito_mode_prefs.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/prefs/incognito_mode_prefs.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/prefs/pref_service.h"
 #include "base/threading/thread_restrictions.h"
@@ skipping 80 matching lines @@
 
 // static
 void IncognitoModePrefs::SetAvailability(PrefService* prefs,
                                          const Availability availability) {
   prefs->SetInteger(prefs::kIncognitoModeAvailability, availability);
 }
 
 // static
 void IncognitoModePrefs::RegisterProfilePrefs(
     user_prefs::PrefRegistrySyncable* registry) {
-  registry->RegisterIntegerPref(
-      prefs::kIncognitoModeAvailability,
-      IncognitoModePrefs::ENABLED,
-      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
+  registry->RegisterIntegerPref(prefs::kIncognitoModeAvailability,
+                                IncognitoModePrefs::ENABLED);
 }
 
 // static
 bool IncognitoModePrefs::ShouldLaunchIncognito(
     const base::CommandLine& command_line,
     const PrefService* prefs) {
   Availability incognito_avail = GetAvailability(prefs);
   return incognito_avail != IncognitoModePrefs::DISABLED &&
          (command_line.HasSwitch(switches::kIncognito) ||
           incognito_avail == IncognitoModePrefs::FORCED);
@@ skipping 43 matching lines @@
   }
   return parental_controls_state ==
       ParentalControlsState::ACTIVITY_LOGGING_ENABLED;
 #elif defined(OS_ANDROID)
   return chrome::android::ChromiumApplication::AreParentalControlsEnabled();
 #else
   return false;
 #endif
 }