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// Copyright 2013 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 MEDIA_CDM_KEY_SYSTEM_NAMES_H_
#define MEDIA_CDM_KEY_SYSTEM_NAMES_H_
#include <string>
#include "media/base/media_export.h"
namespace media {
// TODO(jrummell): Change other uses of Clear Key to use this common value.
// The key system name for Clear Key.
MEDIA_EXPORT extern const char kClearKey[];
// The key system name for External Clear Key.
MEDIA_EXPORT extern const char kExternalClearKey[];
// Returns true if |key_system| is Clear Key, false otherwise.
MEDIA_EXPORT bool IsClearKey(const std::string& key_system);
// Returns true if |key_system| is (reverse) sub-domain of |base|.
MEDIA_EXPORT bool IsChildKeySystemOf(const std::string& key_system,
const std::string& base);
// Returns true if |key_system| is External Clear Key, false otherwise.
MEDIA_EXPORT bool IsExternalClearKey(const std::string& key_system);
} // namespace media
#endif // MEDIA_CDM_KEY_SYSTEM_NAMES_H_
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