Easy Unlock: Add support for hard locking

chrome/browser/chromeos/login/screens/user_selection_screen.cc

Index: chrome/browser/chromeos/login/screens/user_selection_screen.cc
diff --git a/chrome/browser/chromeos/login/screens/user_selection_screen.cc b/chrome/browser/chromeos/login/screens/user_selection_screen.cc
index 41c302447550cdf7a173660f4e00cfa306399d64..e96958985d4731076a09d317110efb56aebb8adb 100644
--- a/chrome/browser/chromeos/login/screens/user_selection_screen.cc
+++ b/chrome/browser/chromeos/login/screens/user_selection_screen.cc
@@ -362,6 +362,9 @@ void UserSelectionScreen::HandleGetUsers() {
 void UserSelectionScreen::SetAuthType(
     const std::string& username,
     ScreenlockBridge::LockHandler::AuthType auth_type) {
+  DCHECK(GetAuthType(username) !=
+             ScreenlockBridge::LockHandler::FORCE_OFFLINE_PASSWORD ||
+         auth_type == ScreenlockBridge::LockHandler::FORCE_OFFLINE_PASSWORD);
   user_auth_type_map_[username] = auth_type;
 }