Use a direct include of utf_string_conversions.h in chrome/browser/, part 2.

chrome/browser/password_manager/login_database_posix.cc

 // Copyright (c) 2010 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 "chrome/browser/password_manager/login_database.h"
 
-#include "base/utf_string_conversions.h"
+#include "base/strings/utf_string_conversions.h"
 
 // TODO: Actually encrypt passwords on Linux.
 
 bool LoginDatabase::EncryptedString(const string16& plain_text,
                                     std::string* cipher_text) const {
   *cipher_text = UTF16ToUTF8(plain_text);
   return true;
 }
 
 bool LoginDatabase::DecryptedString(const std::string& cipher_text,
                                     string16* plain_text) const {
   *plain_text = UTF8ToUTF16(cipher_text);
   return true;
 }