Use SPNEGO mechanism with GSSAPI on Posix

net/http/http_auth_handler_negotiate_unittest.cc

Index: net/http/http_auth_handler_negotiate_unittest.cc
diff --git a/net/http/http_auth_handler_negotiate_unittest.cc b/net/http/http_auth_handler_negotiate_unittest.cc
index f43e39a21b72c2e1c5f9b2b7369f42538c4fa53c..448d3a71b13314693a99501acc53ab1c82ff141a 100644
--- a/net/http/http_auth_handler_negotiate_unittest.cc
+++ b/net/http/http_auth_handler_negotiate_unittest.cc
@@ -101,7 +101,7 @@ class HttpAuthHandlerNegotiateTest : public PlatformTest {
         "localhost",                         // Source name
         "example.com",                       // Target name
         23,                                  // Lifetime
-        *CHROME_GSS_C_NT_HOSTBASED_SERVICE,  // Mechanism
+        *CHROME_GSS_SPNEGO_MECH_OID_DESC,    // Mechanism
         0,                                   // Context flags
         1,                                   // Locally initiated
         0);                                  // Open
@@ -109,7 +109,7 @@ class HttpAuthHandlerNegotiateTest : public PlatformTest {
         "localhost",                         // Source name
         "example.com",                       // Target name
         23,                                  // Lifetime
-        *CHROME_GSS_C_NT_HOSTBASED_SERVICE,  // Mechanism
+        *CHROME_GSS_SPNEGO_MECH_OID_DESC,    // Mechanism
         0,                                   // Context flags
         1,                                   // Locally initiated
         1);                                  // Open