Add a regenerate button to regenerate the password in Windows.

rlz/lib/string_utils.h

-// Copyright (c) 2012 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.
-//
-// String manipulation functions used in the RLZ library.
-
-#ifndef RLZ_LIB_STRING_UTILS_H_
-#define RLZ_LIB_STRING_UTILS_H_
-
-#include <string>
-
-namespace rlz_lib {
-
-bool IsAscii(char letter);
-
-bool BytesToString(const unsigned char* data,
-                   int data_len,
-                   std::string* string);
-
-bool GetHexValue(char letter, int* value);
-
-int HexStringToInteger(const char* text);
-
-};  // namespace
-
-#endif  // RLZ_LIB_STRING_UTILS_H_