[net/http auth] Cleanup. Method names, and constness.

net/http/http_auth_handler_ntlm_portable.cc

Index: net/http/http_auth_handler_ntlm_portable.cc
diff --git a/net/http/http_auth_handler_ntlm_portable.cc b/net/http/http_auth_handler_ntlm_portable.cc
index 54d4492a4bfd3d1564e42e046d6e36cb3e8303d4..5bc03877af32be911e437337c9b2075cb8610adf 100644
--- a/net/http/http_auth_handler_ntlm_portable.cc
+++ b/net/http/http_auth_handler_ntlm_portable.cc
@@ -711,7 +711,7 @@ int HttpAuthHandlerNTLM::GetNextToken(const void* in_token,
 }
 
 int HttpAuthHandlerNTLM::Factory::CreateAuthHandler(
-    HttpAuthChallengeTokenizer* challenge,
+    const HttpAuthChallengeTokenizer& challenge,
     HttpAuth::Target target,
     const GURL& origin,
     CreateReason reason,
@@ -725,10 +725,11 @@ int HttpAuthHandlerNTLM::Factory::CreateAuthHandler(
   // NOTE: Default credentials are not supported for the portable implementation
   // of NTLM.
   scoped_ptr<HttpAuthHandler> tmp_handler(new HttpAuthHandlerNTLM);
-  if (!tmp_handler->InitFromChallenge(challenge, target, origin, net_log))
-    return ERR_INVALID_RESPONSE;
-  handler->swap(tmp_handler);
-  return OK;
+  int result =
+      tmp_handler->HandleInitialChallenge(challenge, target, origin, net_log);
+  if (result == OK)
+    handler->swap(tmp_handler);
+  return result;
 }
 
 }  // namespace net