Pull SecurityStateModel out into a component

components/security_state/switches.cc

+// 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 "components/security_state/switches.h"
+
+namespace security_state {
+namespace switches {
+
+// Use to opt-in to marking HTTP as non-secure.
+const char kMarkNonSecureAs[] = "mark-non-secure-as";
+const char kMarkNonSecureAsNeutral[] = "neutral";
+const char kMarkNonSecureAsNonSecure[] = "non-secure";
+
+}  // namespace switches
+}  // namespace security_state