Add OpenVPN OTP and UserAuthenticationType fields to ONC.

Reland of https://codereview.chromium.org/560863002/ which the CQ failed to commit correctly.

This does not adapt the UI to respect the policy's UserAuthenticationType, yet.

BUG=347916
TBR=stevenjb@chromium.org
TEST=Ensured that a previously working policy pushed OpenVPN network still works.

Review URL: https://codereview.chromium.org/632223002

Cr-Commit-Position: refs/heads/master@{#298431}

1 files changed, 10 insertions, 0 deletions

diff --git a/components/onc/onc_constants.cc b/components/onc/onc_constants.cc
index f8798a3..06342dfa 100644
--- a/components/onc/onc_constants.cc
+++ b/components/onc/onc_constants.cc
@@ -310,6 +310,8 @@ const char kKeyDirection[] = "KeyDirection";
 const char kNoInteract[] = "nointeract";
 const char kNone[] = "none";
 const char kNsCertType[] = "NsCertType";
+const char kOTP[] = "OTP";
+const char kPassword[] = "Password";
 const char kPort[] = "Port";
 const char kProto[] = "Proto";
 const char kPushPeerInfo[] = "PushPeerInfo";
@@ -328,11 +330,19 @@ const char kShaper[] = "Shaper";
 const char kStaticChallenge[] = "StaticChallenge";
 const char kTLSAuthContents[] = "TLSAuthContents";
 const char kTLSRemote[] = "TLSRemote";
+const char kUserAuthenticationType[] = "UserAuthenticationType";
 const char kVerb[] = "Verb";
 const char kVerifyHash[] = "VerifyHash";
 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 verify_x509 {
 const char kName[] = "Name";
 const char kType[] = "Type";