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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "media/cdm/key_system_names.h" | 5 #include "media/base/key_system_names.h" |
6 | 6 |
7 namespace media { | 7 namespace media { |
8 | 8 |
9 const char kClearKey[] = "org.w3.clearkey"; | 9 const char kClearKey[] = "org.w3.clearkey"; |
10 const char kExternalClearKey[] = "org.chromium.externalclearkey"; | 10 const char kExternalClearKey[] = "org.chromium.externalclearkey"; |
11 | 11 |
12 bool IsClearKey(const std::string& key_system) { | 12 bool IsClearKey(const std::string& key_system) { |
13 return key_system == kClearKey; | 13 return key_system == kClearKey; |
14 } | 14 } |
15 | 15 |
16 bool IsChildKeySystemOf(const std::string& key_system, | 16 bool IsChildKeySystemOf(const std::string& key_system, |
17 const std::string& base) { | 17 const std::string& base) { |
18 std::string prefix = base + '.'; | 18 std::string prefix = base + '.'; |
19 return key_system.substr(0, prefix.size()) == prefix; | 19 return key_system.substr(0, prefix.size()) == prefix; |
20 } | 20 } |
21 | 21 |
22 bool IsExternalClearKey(const std::string& key_system) { | 22 bool IsExternalClearKey(const std::string& key_system) { |
23 return key_system == kExternalClearKey || | 23 return key_system == kExternalClearKey || |
24 IsChildKeySystemOf(key_system, kExternalClearKey); | 24 IsChildKeySystemOf(key_system, kExternalClearKey); |
25 } | 25 } |
26 | 26 |
27 } // namespace media | 27 } // namespace media |
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