1// Copyright 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef MEDIA_CDM_KEY_SYSTEM_NAMES_H_
6#define MEDIA_CDM_KEY_SYSTEM_NAMES_H_
7
8#include <string>
9
10#include "media/base/media_export.h"
11
12namespace media {
13
14// TODO(jrummell): Change other uses of Clear Key to use this common value.
15
16// The key system name for Clear Key.
17MEDIA_EXPORT extern const char kClearKey[];
18
19// The key system name for External Clear Key.
20MEDIA_EXPORT extern const char kExternalClearKey[];
21
22// Returns true if |key_system| is Clear Key, false otherwise.
23MEDIA_EXPORT inline bool IsClearKey(const std::string& key_system) {
24  return key_system == kClearKey;
25}
26
27// Returns true if |key_system| is External Clear Key, false otherwise.
28MEDIA_EXPORT bool IsExternalClearKey(const std::string& key_system);
29
30}  // namespace media
31
32#endif  // MEDIA_CDM_KEY_SYSTEM_NAMES_H_
33