Add a dummy entry with libsecret when initializing OSCrypt.

chrome/browser/password_manager/native_backend_libsecret.cc

Index: chrome/browser/password_manager/native_backend_libsecret.cc
diff --git a/chrome/browser/password_manager/native_backend_libsecret.cc b/chrome/browser/password_manager/native_backend_libsecret.cc
index dab55dbe895a1dad495890b1e423cab41c75cf56..e3340aed89422ddaab7ee41f57bb98d40537907a 100644
--- a/chrome/browser/password_manager/native_backend_libsecret.cc
+++ b/chrome/browser/password_manager/native_backend_libsecret.cc
@@ -307,6 +307,8 @@ bool NativeBackendLibsecret::GetLogins(
 bool NativeBackendLibsecret::AddUpdateLoginSearch(
     const autofill::PasswordForm& lookup_form,
     ScopedVector<autofill::PasswordForm>* forms) {
+  LibsecretLoader::EnsureKeyringUnlocked();
+
   LibsecretAttributesBuilder attrs;
   attrs.Append("origin_url", lookup_form.origin.spec());
   attrs.Append("username_element", UTF16ToUTF8(lookup_form.username_element));
@@ -408,6 +410,8 @@ bool NativeBackendLibsecret::GetLoginsList(
     const PasswordStore::FormDigest* lookup_form,
     GetLoginsListOptions options,
     ScopedVector<autofill::PasswordForm>* forms) {
+  LibsecretLoader::EnsureKeyringUnlocked();
+
   LibsecretAttributesBuilder attrs;
   attrs.Append("application", app_string_);
   if (options != ALL_LOGINS)