Use {To/From}JavaTime for policy timestamps

components/policy/core/common/cloud/cloud_policy_validator_unittest.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 "components/policy/core/common/cloud/cloud_policy_validator.h"
 
 #include <stdint.h>
 
 #include <memory>
 #include <string>
@@ skipping 25 matching lines @@
 
 namespace {
 
 ACTION_P(CheckStatus, expected_status) {
   EXPECT_EQ(expected_status, arg0->status());
 };
 
 class CloudPolicyValidatorTest : public testing::Test {
  public:
   CloudPolicyValidatorTest()
-      : timestamp_(
-            base::Time::UnixEpoch() +
-            base::TimeDelta::FromMilliseconds(PolicyBuilder::kFakeTimestamp)),
+      : timestamp_(base::Time::FromJavaTime(PolicyBuilder::kFakeTimestamp)),
         timestamp_option_(CloudPolicyValidatorBase::TIMESTAMP_VALIDATED),
         dm_token_option_(CloudPolicyValidatorBase::DM_TOKEN_REQUIRED),
         device_id_option_(CloudPolicyValidatorBase::DEVICE_ID_REQUIRED),
         allow_key_rotation_(true),
         existing_dm_token_(PolicyBuilder::kFakeToken),
         existing_device_id_(PolicyBuilder::kFakeDeviceId),
         owning_domain_(PolicyBuilder::kFakeDomain),
         cached_key_signature_(PolicyBuilder::GetTestSigningKeySignature()) {
     policy_.SetDefaultNewSigningKey();
   }
@@ skipping 148 matching lines @@
 }
 
 TEST_F(CloudPolicyValidatorTest, IgnoreMissingTimestamp) {
   timestamp_option_ = CloudPolicyValidatorBase::TIMESTAMP_NOT_VALIDATED;
   policy_.policy_data().clear_timestamp();
   Validate(CheckStatus(CloudPolicyValidatorBase::VALIDATION_OK));
 }
 
 TEST_F(CloudPolicyValidatorTest, ErrorOldTimestamp) {
   base::Time timestamp(timestamp_ - base::TimeDelta::FromMinutes(5));
-  policy_.policy_data().set_timestamp(
-      (timestamp - base::Time::UnixEpoch()).InMilliseconds());
+  policy_.policy_data().set_timestamp(timestamp.ToJavaTime());
   Validate(CheckStatus(CloudPolicyValidatorBase::VALIDATION_BAD_TIMESTAMP));
 }
 
 TEST_F(CloudPolicyValidatorTest, ErrorNoDMToken) {
   policy_.policy_data().clear_request_token();
   Validate(CheckStatus(CloudPolicyValidatorBase::VALIDATION_BAD_DM_TOKEN));
 }
 
 TEST_F(CloudPolicyValidatorTest, ErrorNoDMTokenNotRequired) {
   // Even though DM tokens are not required, if the existing policy has a token,
@@ skipping 186 matching lines @@
 
 TEST_F(CloudPolicyValidatorTest, NoRotation) {
   allow_key_rotation_ = false;
   policy_.UnsetNewSigningKey();
   Validate(CheckStatus(CloudPolicyValidatorBase::VALIDATION_OK));
 }
 
 }  // namespace
 
 }  // namespace policy