Allow dynamic updating of authentication policies

net/http/http_auth_scheme.h

Index: net/http/http_auth_scheme.h
diff --git a/net/http/http_auth_scheme.h b/net/http/http_auth_scheme.h
new file mode 100644
index 0000000000000000000000000000000000000000..eef176619212b39b0bfc3040f6431fcd618a6a42
--- /dev/null
+++ b/net/http/http_auth_scheme.h
@@ -0,0 +1,17 @@
+// 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.
+
+#ifndef NET_HTTP_HTTP_AUTH_SCHEME_H_
+#define NET_HTTP_HTTP_AUTH_SCHEME_H_
+
+namespace net {
+extern const char kBasicAuthScheme[];
+extern const char kDigestAuthScheme[];
+extern const char kNtlmAuthScheme[];
+extern const char kNegotiateAuthScheme[];
+extern const char kSpdyProxyAuthScheme[];
+extern const char kMockAuthScheme[];
+}  // namespace net
+
+#endif  // NET_HTTP_HTTP_AUTH_SCHEME_H_