[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 492 matching lines @@
   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);
+  registry->RegisterBooleanPref(

[gab, 2014/03/14 16:43:58]

The |registry| isn't typically invoked directly from this file, this file
delegates to all the various registrars for their features (it would be a
mega-mess if every feature had it's method here and registered it's prefs
directly in here).

Please move this to a Foo::RegisterProfilePrefs() call where "Foo" is relevant
to your feature (like all the other users of this file do).

[noms (inactive), 2014/03/14 18:24:36]

Done. Moved to profiles::RegisterTutorialPrefs()

On 2014/03/14 16:43:58, gab wrote:

+      prefs::kProfileUserManagerTutorialShown,
+      false,
+      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)
@@ skipping 69 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