Clean up error handling and timestamp initialization for cloud policy.

chrome/browser/policy/device_policy_cache.cc

 // Copyright (c) 2011 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/policy/device_policy_cache.h"
 
 #include <limits>
 #include <string>
 #include <vector>
 
@@ skipping 285 matching lines @@
                               kMetricPolicySize);
     InformNotifier(CloudPolicySubsystem::LOCAL_ERROR,
                    CloudPolicySubsystem::POLICY_LOCAL_ERROR);
     return;
   }
   UMA_HISTOGRAM_ENUMERATION(kMetricPolicy, kMetricPolicyLoadSucceeded,
                             kMetricPolicySize);
   data_store_->set_user_name(policy_data.username());
   data_store_->set_device_id(policy_data.device_id());
   *device_token = policy_data.request_token();
-  SetPolicyInternal(policy, NULL, false);
+  base::Time timestamp;
+  if (SetPolicyInternal(policy, &timestamp, true))
+    set_last_policy_refresh_time(timestamp);
 }
 
 // static
 void DevicePolicyCache::DecodeDevicePolicy(
     const em::ChromeDeviceSettingsProto& policy,
     PolicyMap* mandatory,
     PolicyMap* recommended) {
   if (policy.has_device_policy_refresh_rate()) {
     const em::DevicePolicyRefreshRateProto container =
         policy.device_policy_refresh_rate();
@@ skipping 40 matching lines @@
   if (policy.has_open_network_configuration() &&
       policy.open_network_configuration().has_open_network_configuration()) {
     std::string config(
         policy.open_network_configuration().open_network_configuration());
     mandatory->Set(kPolicyDeviceOpenNetworkConfiguration,
                    Value::CreateStringValue(config));
   }
 }
 
 }  // namespace policy