Delay creating easy signin TPM keys until TPM is initialized

chrome/browser/chromeos/login/easy_unlock/easy_unlock_tpm_key_manager_factory.cc

Index: chrome/browser/chromeos/login/easy_unlock/easy_unlock_tpm_key_manager_factory.cc
diff --git a/chrome/browser/chromeos/login/easy_unlock/easy_unlock_tpm_key_manager_factory.cc b/chrome/browser/chromeos/login/easy_unlock/easy_unlock_tpm_key_manager_factory.cc
index 1e057457198c4d32416768c784c125a4de935ce6..c12f2fbe7f507dbeee13f83de592f17b0336db20 100644
--- a/chrome/browser/chromeos/login/easy_unlock/easy_unlock_tpm_key_manager_factory.cc
+++ b/chrome/browser/chromeos/login/easy_unlock/easy_unlock_tpm_key_manager_factory.cc
@@ -61,8 +61,9 @@ KeyedService* EasyUnlockTpmKeyManagerFactory::BuildServiceInstanceFor(
   const user_manager::User* user = NULL;
   if (!chromeos::ProfileHelper::IsSigninProfile(profile))
     user = chromeos::ProfileHelper::Get()->GetUserByProfile(profile);
-  return new EasyUnlockTpmKeyManager(user ? user->email() : std::string(),
-                                     GetLocalState());
+  return new EasyUnlockTpmKeyManager(
+      user ? user->email() : std::string(),
+      user ? user->username_hash() : std::string(), GetLocalState());
 }
 
 content::BrowserContext* EasyUnlockTpmKeyManagerFactory::GetBrowserContextToUse(