Added KioskModeAppPack proto.

chrome/browser/policy/app_pack_updater.cc

Index: chrome/browser/policy/app_pack_updater.cc
diff --git a/chrome/browser/policy/app_pack_updater.cc b/chrome/browser/policy/app_pack_updater.cc
new file mode 100644
index 0000000000000000000000000000000000000000..c7d1faa9c9bee5968d25288245dedd51adf53146
--- /dev/null
+++ b/chrome/browser/policy/app_pack_updater.cc
@@ -0,0 +1,13 @@
+// Copyright (c) 2012 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 "chrome/browser/policy/app_pack_updater.h"
+
+namespace policy {
+
+const char AppPackUpdater::kExtensionId[] = "extension-id";
+const char AppPackUpdater::kUpdateUrl[]   = "update-url";
+const char AppPackUpdater::kKeyChecksum[] = "key-checksum";
+
+}  // namespace policy