Use PASSWORD_PROTECTION_OFF enum instead of int.

Bug: 914410
Change-Id: I9510cd8eda7d8b678b1579798670b9d01d82a755
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1761243
Commit-Queue: Nathan Parker <nparker@chromium.org>
Reviewed-by: Nathan Parker <nparker@chromium.org>
Cr-Commit-Position: refs/heads/master@{#688572}

chrome/browser/safe_browsing/chrome_password_protection_service.cc

@@ -1442,7 +1442,8 @@ void ChromePasswordProtectionService::OnWarningTriggerChanged() {
   const base::Value* pref_value = pref_change_registrar_->prefs()->Get(
       prefs::kPasswordProtectionWarningTrigger);
   // If password protection is not turned off, do nothing.
-  if (pref_value->GetInt() != 0) {
+  if (static_cast<PasswordProtectionTrigger>(pref_value->GetInt()) !=
+      PASSWORD_PROTECTION_OFF) {
     return;
   }