Add TLS-SRP (RFC 5054) support

net/base/ssl_info.h

Index: net/base/ssl_info.h
diff --git a/net/base/ssl_info.h b/net/base/ssl_info.h
index 4c68f06e79300a91f6d48bf689c60e8b95f9d632..1832b8c112cb25fb0a77c3ee68c23cc8fc4e1855 100644
--- a/net/base/ssl_info.h
+++ b/net/base/ssl_info.h
@@ -6,6 +6,7 @@
 #define NET_BASE_SSL_INFO_H_
 #pragma once
 
+#include "base/string16.h"
 #include "base/ref_counted.h"
 
 namespace net {
@@ -23,7 +24,7 @@ class SSLInfo {
 
   void Reset();
 
-  bool is_valid() const { return cert != NULL; }
+  bool is_valid() const { return cert != NULL || !tls_username.empty(); }
 
   // Adds the specified |error| to the cert status.
   void SetCertError(int error);
@@ -31,6 +32,9 @@ class SSLInfo {
   // The SSL certificate.
   scoped_refptr<X509Certificate> cert;
 
+  // The TLS username, or the empty string "" if TLS login auth wasn't used.
+  string16 tls_username;
+
   // Bitmask of status info of |cert|, representing, for example, known errors
   // and extended validation (EV) status.
   // See cert_status_flags.h for values.