Fix unittest for Negotiate and NTLM auth.

BUG=NONE
TEST=Unittest fix - ran on Vista.

Review URL: http://codereview.chromium.org/554040

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@36798 0039d316-1c4b-4281-b951-d872f2087c98

net/http/http_auth_unittest.cc

@@ -80,11 +80,10 @@ TEST(HttpAuthTest, ChooseBestChallengeConnectionBased) {
     const char* challenge_realm;
   } tests[] = {
     {
-      "WWW-Authenticate: Negotiate\r\n"
+      // TODO(cbentzel): Add tests for both Negotiate and NTLM once Negotiate
+      // is supported on all platforms.
       "WWW-Authenticate: NTLM\r\n",
 
-      // We don't support Negotiate, so pick NTLM.  Either way, realm is
-      // empty.
       "",
     },
     {