Surface error messages from ONC parsing in about:policy.

chrome/browser/chromeos/cros/onc_network_parser.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/chromeos/cros/onc_network_parser.h"
 
 #include "base/base64.h"
 #include "base/basictypes.h"
 #include "base/json/json_value_serializer.h"
 #include "base/stringprintf.h"
@@ skipping 121 matching lines @@
 }  // namespace
 
 // -------------------- OncNetworkParser --------------------
 
 OncNetworkParser::OncNetworkParser(const std::string& onc_blob)
     : NetworkParser(get_onc_mapper()),
       network_configs_(NULL),
       certificates_(NULL) {
   JSONStringValueSerializer deserializer(onc_blob);
   deserializer.set_allow_trailing_comma(true);
-  std::string error_msg;
-  scoped_ptr<base::Value> root(deserializer.Deserialize(NULL, &error_msg));
+  scoped_ptr<base::Value> root(deserializer.Deserialize(NULL, &parse_error_));
 
   if (!root.get() || root->GetType() != base::Value::TYPE_DICTIONARY) {
-    LOG(WARNING) << "OncNetworkParser received bad ONC file: " << error_msg;
+    LOG(WARNING) << "OncNetworkParser received bad ONC file: " << parse_error_;
   } else {
     root_dict_.reset(static_cast<DictionaryValue*>(root.release()));
     // At least one of NetworkConfigurations or Certificates is required.
     if (!root_dict_->GetList("NetworkConfigurations", &network_configs_) &&
         !root_dict_->GetList("Certificates", &certificates_)) {
       LOG(WARNING) << "ONC file has no NetworkConfigurations or Certificates.";
     }
   }
 }
 
@@ skipping 573 matching lines @@
   static EnumMapper<ProviderType>::Pair table[] = {
     { flimflam::kProviderL2tpIpsec, PROVIDER_TYPE_L2TP_IPSEC_PSK },
     { flimflam::kProviderOpenVpn, PROVIDER_TYPE_OPEN_VPN },
   };
   static EnumMapper<ProviderType> parser(
       table, arraysize(table), PROVIDER_TYPE_MAX);
   return parser.Get(type);
 }
 
 }  // namespace chromeos