Add a dummy entry with libsecret when initializing OSCrypt.

components/os_crypt/key_storage_libsecret.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/os_crypt/key_storage_libsecret.h"
 
 #include "base/base64.h"
 #include "base/rand_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "components/os_crypt/libsecret_util_linux.h"
@@ skipping 82 matching lines @@
       return password;
     return AddRandomPasswordInLibsecret();
   }
   std::string password(
       LibsecretLoader::secret_value_get_text(password_libsecret));
   LibsecretLoader::secret_value_unref(password_libsecret);
   return password;
 }
 
 bool KeyStorageLibsecret::Init() {
-  return LibsecretLoader::EnsureLibsecretLoaded();
+  bool loaded = LibsecretLoader::EnsureLibsecretLoaded();
+  if (loaded)
+    LibsecretLoader::EnsureKeyringUnlocked();
+  return loaded;
 }
 
 std::string KeyStorageLibsecret::Migrate() {
   GError* error = nullptr;
   LibsecretAttributesBuilder attrs;
 
   // Detect old entry.
   GList* search_results = LibsecretLoader::secret_service_search_sync(
       nullptr /* default secret service */, &kKeystoreSchemaV1, attrs.Get(),
       static_cast<SecretSearchFlags>(SECRET_SEARCH_UNLOCK |
@@ skipping 34 matching lines @@
   if (error) {
     VLOG(1) << "OSCrypt failed to delete deprecated password. "
             << error->message;
     g_error_free(error);
   }
 
   VLOG(1) << "OSCrypt migrated from deprecated password.";
 
   return password;
 }