Use {To/From}JavaTime for policy timestamps

components/policy/core/common/cloud/cloud_policy_service_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_service.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/macros.h"
@@ skipping 62 matching lines @@
   store_.policy_.reset(new em::PolicyData());
   store_.policy_->set_request_token("fake token");
   store_.policy_->set_device_id("fake client id");
   store_.policy_->set_timestamp(32);
   store_.policy_->set_valid_serial_number_missing(true);
   store_.policy_->set_public_key_version(17);
   EXPECT_CALL(client_,
               SetupRegistration(store_.policy_->request_token(),
                                 store_.policy_->device_id())).Times(1);
   store_.NotifyStoreLoaded();
-  EXPECT_EQ(base::Time::UnixEpoch() + base::TimeDelta::FromMilliseconds(32),
-            client_.last_policy_timestamp_);
+  EXPECT_EQ(base::Time::FromJavaTime(32), client_.last_policy_timestamp_);
   EXPECT_TRUE(client_.submit_machine_id_);
   EXPECT_TRUE(client_.public_key_version_valid_);
   EXPECT_EQ(17, client_.public_key_version_);
 }
 
 TEST_F(CloudPolicyServiceTest, PolicyUpdateClientFailure) {
   client_.SetStatus(DM_STATUS_REQUEST_FAILED);
   EXPECT_CALL(store_, Store(_)).Times(0);
   client_.NotifyPolicyFetched();
 }
@@ skipping 179 matching lines @@
   testing::Mock::VerifyAndClearExpectations(&observer);
 
   // Now, the next time the store is loaded, the observer should not be called
   // again.
   EXPECT_CALL(observer, OnInitializationCompleted(&service_)).Times(0);
   store_.NotifyStoreLoaded();
   service_.RemoveObserver(&observer);
 }
 
 }  // namespace policy