Allow dynamic updating of authentication policies

net/http/http_auth_scheme.cc

Index: net/http/http_auth_scheme.cc
diff --git a/net/http/http_auth_scheme.cc b/net/http/http_auth_scheme.cc
new file mode 100644
index 0000000000000000000000000000000000000000..6b6cb325a53693b67866705fb44347bd13233810
--- /dev/null
+++ b/net/http/http_auth_scheme.cc
@@ -0,0 +1,15 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "net/base/net_export.h"
+#include "net/http/http_auth_scheme.h"
+
+namespace net {
+NET_EXPORT const char kBasicAuthScheme[] = "basic";
+NET_EXPORT const char kDigestAuthScheme[] = "digest";
+NET_EXPORT const char kNtlmAuthScheme[] = "ntlm";
+NET_EXPORT const char kNegotiateAuthScheme[] = "negotiate";
+NET_EXPORT const char kSpdyProxyAuthScheme[] = "spdyproxy";
+NET_EXPORT const char kMockAuthScheme[] = "mock";
+}  // namespace net