[Mac, Win] Show a user manager tutorial once per profile.

chrome/browser/prefs/browser_prefs.cc

 // Copyright 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/browser_prefs.h"
 
 #include "apps/prefs.h"
 #include "base/debug/trace_event.h"
 #include "base/prefs/pref_registry_simple.h"
 #include "base/prefs/pref_service.h"
@@ skipping 460 matching lines @@
   registry->RegisterDictionaryPref(
       kBackupPref,
       new base::DictionaryValue(),
       user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
 #if !defined(OS_ANDROID)
   registry->RegisterStringPref(
       kSyncPromoErrorMessage,
       std::string(),
       user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
 #endif
-
-#if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
-  RegisterNewProfileUIPrefs(registry);
-#endif
 }
 
 void RegisterUserProfilePrefs(user_prefs::PrefRegistrySyncable* registry) {
   RegisterProfilePrefs(registry);
 
 #if defined(OS_CHROMEOS)
   chromeos::PowerPrefs::RegisterUserProfilePrefs(registry);
 #endif
 }
 
 void RegisterScreenshotPrefs(PrefRegistrySimple* registry) {
   registry->RegisterBooleanPref(prefs::kDisableScreenshots, false);
 }
 
 #if defined(OS_CHROMEOS)
 void RegisterLoginProfilePrefs(user_prefs::PrefRegistrySyncable* registry) {
   RegisterProfilePrefs(registry);
 
   chromeos::PowerPrefs::RegisterLoginProfilePrefs(registry);
 }
 #endif
 
-#if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
-void RegisterNewProfileUIPrefs(user_prefs::PrefRegistrySyncable* registry) {
-  registry->RegisterIntegerPref(
-      prefs::kProfileAvatarTutorialShown,
-      0,
-      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
-}
-#endif
-
 void MigrateUserPrefs(Profile* profile) {
   PrefService* prefs = profile->GetPrefs();
 
   // Cleanup prefs from now-removed protector feature.
   prefs->ClearPref(kBackupPref);
 
 #if !defined(OS_ANDROID)
   // Cleanup now-removed sync promo error message preference.
   // TODO(fdoray): Remove this when it's safe to do so (crbug.com/268442).
   prefs->ClearPref(kSyncPromoErrorMessage);
@@ skipping 66 matching lines @@
     local_state->SetInteger(prefs::kMultipleProfilePrefMigration,
                             current_version);
   }
 
 #if defined(OS_CHROMEOS)
   chromeos::default_pinned_apps_field_trial::MigratePrefs(local_state);
 #endif
 }
 
 }  // namespace chrome