Add an ONC property for the third-party VPN provider extension ID

components/onc/onc_constants.cc

 // Copyright 2013 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 "components/onc/onc_constants.h"
 
 // Constants for ONC properties.
 namespace onc {
 
 const char kAugmentationActiveSetting[] = "Active";
@@ skipping 331 matching lines @@
 const char kVerifyX509[] = "VerifyX509";
 }  // namespace openvpn
 
 namespace openvpn_user_auth_type {
 const char kNone[] = "None";
 const char kOTP[] = "OTP";
 const char kPassword[] = "Password";
 const char kPasswordAndOTP[] = "PasswordAndOTP";
 }  // openvpn_user_auth_type
 
+namespace third_party_vpn {
+const char kExtensionID[] = "ExtensionID";
+}  // third_party_vpn
+
 namespace verify_x509 {
 const char kName[] = "Name";
 const char kType[] = "Type";
 
 namespace types {
 const char kName[] = "name";
 const char kNamePrefix[] = "name-prefix";
 const char kSubject[] = "subject";
 }  // namespace types
 }  // namespace verify_x509
@@ skipping 17 matching lines @@
 const char kLoginIDField[] = "${LOGIN_ID}";
 const char kEmailField[] = "${LOGIN_EMAIL}";
 }  // namespace substitutes
 
 namespace global_network_config {
 const char kAllowOnlyPolicyNetworksToAutoconnect[] =
     "AllowOnlyPolicyNetworksToAutoconnect";
 }  // global_network_config
 
 }  // namespace onc