Rename network configuration policy as per Zhanyong's proposal.

chrome/browser/policy/proto/chrome_device_policy.proto

 // 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.
 
 syntax = "proto2";
 
 option optimize_for = LITE_RUNTIME;
 
 package enterprise_management;
 
@@ skipping 62 matching lines @@
 
 message MetricsEnabledProto {
   optional bool metrics_enabled = 1;
 }
 
 message ReleaseChannelProto {
   // One of "stable-channel", "beta-channel", or "dev-channel"
   optional string release_channel = 1;
 }
 
-message NetworkConfigurationProto {
+message DeviceOpenNetworkConfigurationProto {
   // The network configuration blob. This is a JSON string as specified by ONC.
-  optional string network_configuration = 1;
+  optional string open_network_configuration = 1;
 }
 
 message ChromeDeviceSettingsProto {
   optional DevicePolicyRefreshRateProto device_policy_refresh_rate = 1;
   optional UserWhitelistProto user_whitelist = 2;
   optional GuestModeEnabledProto guest_mode_enabled = 3;
   optional DeviceProxySettingsProto device_proxy_settings = 4;
   optional CameraEnabledProto camera_enabled = 5;
   optional ShowUserNamesOnSigninProto show_user_names = 6;
   optional DataRoamingEnabledProto data_roaming_enabled = 7;
   optional AllowNewUsersProto allow_new_users = 8;
   optional MetricsEnabledProto metrics_enabled = 9;
   optional ReleaseChannelProto release_channel = 10;
-  optional NetworkConfigurationProto network_configuration = 11;
+  optional DeviceOpenNetworkConfigurationProto open_network_configuration = 11;
 }