Replace NTLMv1 implementation with a functionally equivalent one.

net/http/http_auth_handler_ntlm.h

Index: net/http/http_auth_handler_ntlm.h
diff --git a/net/http/http_auth_handler_ntlm.h b/net/http/http_auth_handler_ntlm.h
index fed6303f834f0d1e7980a18afe10900691b14569..4d4b73ef00cec9cadbe9c5ecab76e33a94718660 100644
--- a/net/http/http_auth_handler_ntlm.h
+++ b/net/http/http_auth_handler_ntlm.h
@@ -23,6 +23,8 @@
 #include <windows.h>
 #include <security.h>
 #include "net/http/http_auth_sspi_win.h"
+#elif defined(NTLM_PORTABLE)
+#include "net/ntlm/ntlm_client.h"
 #endif
 
 #include <string>
@@ -70,6 +72,8 @@ class NET_EXPORT_PRIVATE HttpAuthHandlerNTLM : public HttpAuthHandler {
   };
 
 #if defined(NTLM_PORTABLE)
+  static void GenerateRandom(uint8_t* output, size_t n);
+
   // A function that generates n random bytes in the output buffer.
   typedef void (*GenerateRandomProc)(uint8_t* output, size_t n);
 
@@ -152,6 +156,8 @@ class NET_EXPORT_PRIVATE HttpAuthHandlerNTLM : public HttpAuthHandler {
 
 #if defined(NTLM_SSPI)
   HttpAuthSSPI auth_sspi_;
+#elif defined(NTLM_PORTABLE)
+  ntlm::NtlmClient ntlm_client_;
 #endif
 
 #if defined(NTLM_PORTABLE)