kiosk: Defer app update until platform matches

chrome/browser/extensions/extension_system_impl.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_SYSTEM_IMPL_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_SYSTEM_IMPL_H_
 
 #include <string>
 
 #include "base/macros.h"
@@ skipping 116 matching lines @@
     std::unique_ptr<InstallGate> update_install_gate_;
 
     // For verifying the contents of extensions read from disk.
     scoped_refptr<ContentVerifier> content_verifier_;
 
     std::unique_ptr<UninstallPingSender> uninstall_ping_sender_;
 
 #if defined(OS_CHROMEOS)
     std::unique_ptr<chromeos::DeviceLocalAccountManagementPolicyProvider>
         device_local_account_management_policy_provider_;
+    std::unique_ptr<InstallGate> kiosk_app_update_install_gate_;
 #endif
 
     OneShotEvent ready_;
   };
 
   Profile* profile_;
 
   Shared* shared_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionSystemImpl);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_SYSTEM_IMPL_H_