Revert of Change base::Value::ListStorage to std::vector<base::Value>

chromeos/network/managed_network_configuration_handler_impl.cc

Index: chromeos/network/managed_network_configuration_handler_impl.cc
diff --git a/chromeos/network/managed_network_configuration_handler_impl.cc b/chromeos/network/managed_network_configuration_handler_impl.cc
index 8ada86f35ce871ea9c857f0f00718c159f95b5b4..023197e758e0ffed736b7fbe708575a546df0986 100644
--- a/chromeos/network/managed_network_configuration_handler_impl.cc
+++ b/chromeos/network/managed_network_configuration_handler_impl.cc
@@ -496,8 +496,8 @@
 
   for (base::ListValue::const_iterator it = network_configs_onc.begin();
        it != network_configs_onc.end(); ++it) {
-    const base::DictionaryValue* network = NULL;
-    it->GetAsDictionary(&network);
+    base::DictionaryValue* network = NULL;
+    (*it)->GetAsDictionary(&network);
     DCHECK(network);
 
     std::string guid;