Fix few minor easy unlock bugs

chrome/browser/signin/easy_unlock_service.cc

Index: chrome/browser/signin/easy_unlock_service.cc
diff --git a/chrome/browser/signin/easy_unlock_service.cc b/chrome/browser/signin/easy_unlock_service.cc
index afbb94f5e4bb604fe97233a6fd6f03ea016f8ca7..c07f85bc75048f72685b024f22adad0cf5707d35 100644
--- a/chrome/browser/signin/easy_unlock_service.cc
+++ b/chrome/browser/signin/easy_unlock_service.cc
@@ -131,7 +131,7 @@ void EasyUnlockService::RegisterProfilePrefs(
       user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
   registry->RegisterBooleanPref(
       prefs::kEasyUnlockShowTutorial,
-      false,
+      true,
       user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
   registry->RegisterDictionaryPref(
       prefs::kEasyUnlockPairing,
@@ -361,6 +361,9 @@ void EasyUnlockService::OnTurnOffFlowFinished(bool success) {
   ClearRemoteDevices();
   SetTurnOffFlowStatus(IDLE);
 
+  // Make sure lock screen state set by the extension gets reset.
+  screenlock_state_handler_.reset();
+
   if (GetComponentLoader(profile_)->Exists(extension_misc::kEasyUnlockAppId)) {
     extensions::ExtensionSystem* extension_system =
         extensions::ExtensionSystem::Get(profile_);