Remove the "not_after" validation of policy timestamps

chrome/browser/chromeos/policy/device_local_account_policy_store.cc

 // 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.
 
 #include "chrome/browser/chromeos/policy/device_local_account_policy_store.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 177 matching lines @@
       UserCloudPolicyValidator::Create(std::move(policy_response),
                                        background_task_runner()));
   validator->ValidateUsername(account_id_, false);
   validator->ValidatePolicyType(dm_protocol::kChromePublicAccountPolicyType);
   // The timestamp is verified when storing a new policy downloaded from the
   // server but not when loading a cached policy from disk.
   // See SessionManagerOperation::ValidateDeviceSettings for the rationale.
   validator->ValidateAgainstCurrentPolicy(
       policy(),
       valid_timestamp_required
-          ? CloudPolicyValidatorBase::TIMESTAMP_FULLY_VALIDATED
+          ? CloudPolicyValidatorBase::TIMESTAMP_VALIDATED
           : CloudPolicyValidatorBase::TIMESTAMP_NOT_VALIDATED,
       CloudPolicyValidatorBase::DM_TOKEN_NOT_REQUIRED,
       CloudPolicyValidatorBase::DEVICE_ID_NOT_REQUIRED);
 
   // Validate the DMToken to match what device policy has.
   validator->ValidateDMToken(device_policy_data->request_token(),
                              CloudPolicyValidatorBase::DM_TOKEN_REQUIRED);
 
   // Validate the device id to match what device policy has.
   validator->ValidateDeviceId(device_policy_data->device_id(),
                               CloudPolicyValidatorBase::DEVICE_ID_REQUIRED);
 
   validator->ValidatePayload();
   validator->ValidateSignature(key->as_string());
 
   if (validate_in_background) {
     UserCloudPolicyValidator::StartValidation(
         std::move(validator), base::Bind(callback, key->as_string()));
   } else {
     validator->RunValidation();
 
     UpdatePolicy(key->as_string(), validator.get());
   }
 }
 
 }  // namespace policy