Moved //components/proximity_auth/cryptauth to //components/cryptauth.

components/proximity_auth/cryptauth/cryptauth_enrollment_utils.cc

-// Copyright 2015 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/proximity_auth/cryptauth/cryptauth_enrollment_utils.h"
-
-#include <math.h>
-#include <stddef.h>
-
-#include "base/base64url.h"
-#include "base/md5.h"
-#include "base/sha1.h"
-
-namespace proximity_auth {
-
-int64_t HashStringToInt64(const std::string& string) {
-  base::MD5Context context;
-  base::MD5Init(&context);
-  base::MD5Update(&context, string);
-
-  base::MD5Digest digest;
-  base::MD5Final(&digest, &context);
-
-  // Fold the digest into an int64_t value. |digest.a| is a 16-byte array, so we
-  // sum the two 8-byte halves of the digest to create the hash.
-  int64_t hash = 0;
-  for (size_t i = 0; i < sizeof(digest.a); ++i) {
-    uint8_t byte = digest.a[i];
-    hash += static_cast<int64_t>(byte) << (i % sizeof(int64_t));
-  }
-
-  return hash;
-}
-
-std::string CalculateDeviceUserId(const std::string& device_id,
-                                  const std::string& user_id) {
-  std::string device_user_id;
-  base::Base64UrlEncode(base::SHA1HashString(device_id + "|" + user_id),
-                        base::Base64UrlEncodePolicy::INCLUDE_PADDING,
-                        &device_user_id);
-  return device_user_id;
-}
-
-}  // namespace proximity_auth