Allow dynamic updating of authentication policies

net/http/http_auth_handler_ntlm.cc

Index: net/http/http_auth_handler_ntlm.cc
diff --git a/net/http/http_auth_handler_ntlm.cc b/net/http/http_auth_handler_ntlm.cc
index 0bf7260efad75e07d6a3d3a6f055d62244c9b34b..7a41d5acf3ab939f1e63645bf1b56a5b48b170aa 100644
--- a/net/http/http_auth_handler_ntlm.cc
+++ b/net/http/http_auth_handler_ntlm.cc
@@ -13,6 +13,7 @@
 #include "net/base/net_errors.h"
 #include "net/base/net_util.h"
 #include "net/http/http_auth_challenge_tokenizer.h"
+#include "net/http/http_auth_scheme.h"
 
 namespace net {
 
@@ -112,7 +113,7 @@ HttpAuth::AuthorizationResult HttpAuthHandlerNTLM::ParseChallenge(
   auth_data_.clear();
 
   // Verify the challenge's auth-scheme.
-  if (!base::LowerCaseEqualsASCII(tok->scheme(), "ntlm"))
+  if (!base::LowerCaseEqualsASCII(tok->scheme(), kNtlmAuthScheme))
     return HttpAuth::AUTHORIZATION_RESULT_INVALID;
 
   std::string base64_param = tok->base64_param();