components: Rename encryptor directory to os_crypt.

components/encryptor/os_crypt_win.cc

-// Copyright 2014 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/encryptor/os_crypt.h"
-
-#include <windows.h>
-#include <wincrypt.h>
-
-#include "base/strings/utf_string_conversions.h"
-
-#pragma comment(lib, "crypt32.lib")
-
-bool OSCrypt::EncryptString16(const base::string16& plaintext,
-                              std::string* ciphertext) {
-  return EncryptString(base::UTF16ToUTF8(plaintext), ciphertext);
-}
-
-bool OSCrypt::DecryptString16(const std::string& ciphertext,
-                              base::string16* plaintext) {
-  std::string utf8;
-  if (!DecryptString(ciphertext, &utf8))
-    return false;
-
-  *plaintext = base::UTF8ToUTF16(utf8);
-  return true;
-}
-
-bool OSCrypt::EncryptString(const std::string& plaintext,
-                            std::string* ciphertext) {
-  DATA_BLOB input;
-  input.pbData = const_cast<BYTE*>(
-      reinterpret_cast<const BYTE*>(plaintext.data()));
-  input.cbData = static_cast<DWORD>(plaintext.length());
-
-  DATA_BLOB output;
-  BOOL result = CryptProtectData(&input, L"", NULL, NULL, NULL,
-                                 0, &output);
-  if (!result)
-    return false;
-
-  // this does a copy
-  ciphertext->assign(reinterpret_cast<std::string::value_type*>(output.pbData),
-                     output.cbData);
-
-  LocalFree(output.pbData);
-  return true;
-}
-
-bool OSCrypt::DecryptString(const std::string& ciphertext,
-                            std::string* plaintext) {
-  DATA_BLOB input;
-  input.pbData = const_cast<BYTE*>(
-      reinterpret_cast<const BYTE*>(ciphertext.data()));
-  input.cbData = static_cast<DWORD>(ciphertext.length());
-
-  DATA_BLOB output;
-  BOOL result = CryptUnprotectData(&input, NULL, NULL, NULL, NULL,
-                                   0, &output);
-  if (!result)
-    return false;
-
-  plaintext->assign(reinterpret_cast<char*>(output.pbData), output.cbData);
-  LocalFree(output.pbData);
-  return true;
-}