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

chrome/browser/profiles/profile.cc

Index: chrome/browser/profiles/profile.cc
diff --git a/chrome/browser/profiles/profile.cc b/chrome/browser/profiles/profile.cc
index c93ad22e6d40c8b893001a426666a4eab858baab..6a260ac5ae2d14d8d7ad818ff879e39bc9d94ae2 100644
--- a/chrome/browser/profiles/profile.cc
+++ b/chrome/browser/profiles/profile.cc
@@ -166,11 +166,20 @@ void Profile::RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry) {
       prefs::kSpdyProxyAuthWasEnabledBefore,
       false,
       user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
-
 #endif  // defined(OS_ANDROID) || defined(OS_IOS)
+#if !defined(OS_ANDROID) && !defined(OS_CHROMEOS) && !defined(OS_IOS)
+  // Preferences related to the avatar bubble and user manager tutorials.
+  registry->RegisterIntegerPref(
+      prefs::kProfileAvatarTutorialShown,
+      0,
+      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
+  registry->RegisterBooleanPref(
+      prefs::kProfileUserManagerTutorialShown,
+      false,
+      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
+#endif
 }
 
-
 std::string Profile::GetDebugName() {
   std::string name = GetPath().BaseName().MaybeAsASCII();
   if (name.empty()) {