Map the client certificate related SSL alerts to

net/socket/nss_ssl_util.cc

Index: net/socket/nss_ssl_util.cc
===================================================================
--- net/socket/nss_ssl_util.cc	(revision 139421)
+++ net/socket/nss_ssl_util.cc	(working copy)
@@ -179,6 +179,7 @@
     case SSL_ERROR_SSL_DISABLED:
       return ERR_NO_SSL_VERSIONS_ENABLED;
     case SSL_ERROR_NO_CYPHER_OVERLAP:
+    case SSL_ERROR_PROTOCOL_VERSION_ALERT:
     case SSL_ERROR_UNSUPPORTED_VERSION:
       return ERR_SSL_VERSION_OR_CIPHER_MISMATCH;
     case SSL_ERROR_HANDSHAKE_FAILURE_ALERT:
@@ -219,18 +220,6 @@
   }
 }
 
-// Context-sensitive error mapping functions.
-int MapNSSHandshakeError(PRErrorCode err) {
-  switch (err) {
-    // If the server closed on us, it is a protocol error.
-    // Some TLS-intolerant servers do this when we request TLS.
-    case PR_END_OF_FILE_ERROR:
-      return ERR_SSL_PROTOCOL_ERROR;
-    default:
-      return MapNSSError(err);
-  }
-}
-
 // Extra parameters to attach to the NetLog when we receive an error in response
 // to a call to an NSS function.  Used instead of SSLErrorParams with
 // events of type TYPE_SSL_NSS_ERROR.  Automatically looks up last PR error.