Tweak CryptauthDeviceManager to store fetched BeaconSeed data in Base64URL encoding, and retrieve i…

components/cryptauth/eid_generator.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/cryptauth/eid_generator.h"
 
 #include <cstring>
 
-#include "base/base64.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/string_util.h"
 #include "base/sys_byteorder.h"
 #include "base/time/default_clock.h"
 #include "base/time/time.h"
 #include "components/cryptauth/proto/cryptauth_api.pb.h"
 #include "components/cryptauth/remote_device.h"
 #include "components/proximity_auth/logging/logging.h"
 #include "crypto/sha2.h"
 
@@ skipping 413 matching lines @@
     const int64_t end_of_period_timestamp_ms,
     const int64_t current_timestamp_ms) {
   DCHECK(start_of_period_timestamp_ms <= current_timestamp_ms);
   DCHECK(current_timestamp_ms < end_of_period_timestamp_ms);
 
   return current_timestamp_ms <
          start_of_period_timestamp_ms + kNumMsInBeginningOfEidPeriod;
 }
 
 }  // namespace cryptauth