[net/http auth] Use strings to identify authentication schemes.

net/http/http_network_transaction_unittest.cc

Index: net/http/http_network_transaction_unittest.cc
diff --git a/net/http/http_network_transaction_unittest.cc b/net/http/http_network_transaction_unittest.cc
index fb65846782a989cf59b6552d355c0dcf11ba9b53..a9c568ecf0694eaaca58dfe76153249028098e4c 100644
--- a/net/http/http_network_transaction_unittest.cc
+++ b/net/http/http_network_transaction_unittest.cc
@@ -10628,7 +10628,7 @@ TEST_P(HttpNetworkTransactionTest, MultiRoundAuth) {
   session_deps_.host_resolver->set_synchronous_mode(true);
 
   HttpAuthHandlerMock* auth_handler(new HttpAuthHandlerMock());
-  auth_handler->set_connection_based(true);
+  auth_handler->set_expect_multiple_challenges(true);
   std::string auth_challenge = "Mock realm=server";
   GURL origin("http://www.example.com");
   HttpAuthChallengeTokenizer tokenizer(auth_challenge.begin(),
@@ -14608,9 +14608,9 @@ TEST_P(HttpNetworkTransactionTest, ProxyHeadersNotSentOverWsTunnel) {
                                 arraysize(data_writes));
   session_deps_.socket_factory->AddSocketDataProvider(&data);
 
-  session->http_auth_cache()->Add(
-      GURL("http://myproxy:70/"), "MyRealm1", HttpAuth::AUTH_SCHEME_BASIC,
-      "Basic realm=MyRealm1", AuthCredentials(kFoo, kBar), "/");
+  session->http_auth_cache()->Add(GURL("http://myproxy:70/"), "MyRealm1",
+                                  "basic", "Basic realm=MyRealm1",
+                                  AuthCredentials(kFoo, kBar), "/");
 
   scoped_ptr<HttpTransaction> trans(
       new HttpNetworkTransaction(DEFAULT_PRIORITY, session.get()));