Replace NTLMv1 implementation with a functionally equivalent one.

net/ntlm/ntlm_unittest.cc

Index: net/ntlm/ntlm_unittest.cc
diff --git a/net/ntlm/ntlm_unittest.cc b/net/ntlm/ntlm_unittest.cc
index 6c40d16af6d8ba6c2dd2e2dbdc42a4b4a963c2a7..6a2ce032acb7a7bd15d2b23a7e4c32359ab19b57 100644
--- a/net/ntlm/ntlm_unittest.cc
+++ b/net/ntlm/ntlm_unittest.cc
@@ -13,6 +13,9 @@
 
 #include "net/ntlm/ntlm.h"
 
+#include <string>
+
+#include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
 #include "net/ntlm/ntlm_test_data.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -117,4 +120,4 @@ TEST(NtlmTest, GenerateResponsesV1WithSessionSecurityVerifySSUsed) {
 }
 
 }  // namespace ntlm
-}  // namespace net
+}  // namespace net