Adding error handling to ONC validation.

chrome/browser/ui/webui/net_internals/net_internals_ui.cc

Index: chrome/browser/ui/webui/net_internals/net_internals_ui.cc
diff --git a/chrome/browser/ui/webui/net_internals/net_internals_ui.cc b/chrome/browser/ui/webui/net_internals/net_internals_ui.cc
index 1dbe6dec155dabb4d4b417d4f4039fe9d094d6ef..66eb372518c5daa622e8768e64d3aa64fb680ca7 100644
--- a/chrome/browser/ui/webui/net_internals/net_internals_ui.cc
+++ b/chrome/browser/ui/webui/net_internals/net_internals_ui.cc
@@ -1487,20 +1487,26 @@ void NetInternalsMessageHandler::OnImportONCFile(const ListValue* list) {
     NOTREACHED();
   }
 
-  std::string error;
+  std::string messages;
   chromeos::NetworkLibrary* cros_network =
       chromeos::CrosLibrary::Get()->GetNetworkLibrary();
-  cros_network->LoadOncNetworks(onc_blob, passcode,
-                                chromeos::NetworkUIData::ONC_SOURCE_USER_IMPORT,
-                                false,  // allow_web_trust_from_policy
-                                &error);
+  bool success = cros_network->LoadOncNetworks(
+      onc_blob, passcode,
+      chromeos::NetworkUIData::ONC_SOURCE_USER_IMPORT,
+      false,  // allow_web_trust_from_policy
+      &messages);
+
+  LOG(WARNING) << "LoadOncNetworks result: " << (success ? "true":"false")
+               << ", " << messages;
 
   // Now that we've added the networks, we need to rescan them so they'll be
   // available from the menu more immediately.
   cros_network->RequestNetworkScan();
 
-  SendJavascriptCommand("receivedONCFileParse",
-                        Value::CreateStringValue(error));
+  base::DictionaryValue *params = new base::DictionaryValue();
+  params->Set("message", base::Value::CreateStringValue(messages));
+  params->Set("success", base::Value::CreateBooleanValue(success));
+  SendJavascriptCommand("receivedONCFileParse", params);
 }
 
 void NetInternalsMessageHandler::OnStoreDebugLogs(const ListValue* list) {