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

chrome/browser/profiles/profiles_state.cc

Index: chrome/browser/profiles/profiles_state.cc
diff --git a/chrome/browser/profiles/profiles_state.cc b/chrome/browser/profiles/profiles_state.cc
index 3c8aa1b5c7e1dad3c39fdf2b10cbf5f2e55ca343..8630a78392eefb0a3c52fceccd2364017d6b3006 100644
--- a/chrome/browser/profiles/profiles_state.cc
+++ b/chrome/browser/profiles/profiles_state.cc
@@ -17,6 +17,7 @@
 #include "chrome/browser/ui/browser.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/pref_names.h"
+#include "components/user_prefs/pref_registry_syncable.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 
@@ -50,6 +51,19 @@ void RegisterPrefs(PrefRegistrySimple* registry) {
   registry->RegisterListPref(prefs::kProfilesLastActive);
 }
 
+void RegisterTutorialPrefs(user_prefs::PrefRegistrySyncable* registry) {
+#if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
+  registry->RegisterIntegerPref(
+      prefs::kProfileAvatarTutorialShown,
+      0,
+      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
+  registry->RegisterBooleanPref(
+      prefs::kProfileUserManagerTutorialShown,
+      false,
+      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
+#endif
+}
+
 base::string16 GetAvatarNameForProfile(Profile* profile) {
   base::string16 display_name;