Replace NTLMv1 implementation with a functionally equivalent one.

net/http/http_auth_handler_ntlm_portable_unittest.cc

Index: net/http/http_auth_handler_ntlm_portable_unittest.cc
diff --git a/net/http/http_auth_handler_ntlm_portable_unittest.cc b/net/http/http_auth_handler_ntlm_portable_unittest.cc
index 9d77ec4a538c138146be2c2ecb1ef3c9302bdb56..8298a0dce8565b7376f21eba09ff9526ac2ccba5 100644
--- a/net/http/http_auth_handler_ntlm_portable_unittest.cc
+++ b/net/http/http_auth_handler_ntlm_portable_unittest.cc
@@ -167,7 +167,7 @@ TEST_F(HttpAuthHandlerNtlmPortableTest, VerifyType1Message) {
   // The type 1 message generated is always the same. The only variable
   // part of the message is the flags and this implementation always offers
   // the same set of flags.
-  ASSERT_EQ("NTLM TlRMTVNTUAABAAAAB4IIAAAAAAAAAAAAAAAAAAAAAAA=", token);
+  ASSERT_EQ("NTLM TlRMTVNTUAABAAAAB4IIAAAAAAAgAAAAAAAAACAAAAA=", token);
 }
 
 TEST_F(HttpAuthHandlerNtlmPortableTest, EmptyTokenFails) {