Introduce a layering in the invalidation component as public and impl

components/invalidation/invalidation_switches.cc

Index: components/invalidation/invalidation_switches.cc
diff --git a/components/invalidation/invalidation_switches.cc b/components/invalidation/invalidation_switches.cc
deleted file mode 100644
index dffc2518045f4c78da021f3149b8748e16a17381..0000000000000000000000000000000000000000
--- a/components/invalidation/invalidation_switches.cc
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright 2014 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/invalidation/invalidation_switches.h"
-
-namespace invalidation {
-namespace switches {
-
-// Overrides the default host:port used for notifications.
-const char kSyncNotificationHostPort[]      = "sync-notification-host-port";
-
-// Allows insecure XMPP connections for sync (for testing).
-const char kSyncAllowInsecureXmppConnection[] =
-    "sync-allow-insecure-xmpp-connection";
-
-}  // namespace switches
-}  // namespace invalidation