Implement robustness strings in requestMediaKeySystemAccess().

media/base/key_systems.h

 // 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_BASE_KEY_SYSTEMS_H_
 #define MEDIA_BASE_KEY_SYSTEMS_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 67 matching lines @@
 // Returns whether AesDecryptor can be used for the given |concrete_key_system|.
 MEDIA_EXPORT bool CanUseAesDecryptor(const std::string& concrete_key_system);
 
 #if defined(ENABLE_PEPPER_CDMS)
 // Returns the Pepper MIME type for |concrete_key_system|.
 // Returns empty string if |concrete_key_system| is unknown or not Pepper-based.
 MEDIA_EXPORT std::string GetPepperType(
     const std::string& concrete_key_system);
 #endif
 
-// Returns whether |key_system| supports persistent-license sessions.
-MEDIA_EXPORT bool IsPersistentLicenseSessionSupported(
+// Returns the configuration rule for supporting a robustness requirement.

[ddorwin, 2015/03/18 01:08:04]

s/rule/option/ like the comments in the definition?

[sandersd (OOO until July 31), 2015/03/18 20:41:37]

(media_type, robustness) is the option, the conditions to support that option is
the rule.

+// TODO(sandersd): Also take a list of codecs, as they may affect the result.
+MEDIA_EXPORT EmeConfigRule GetRobustnessConfigRule(
     const std::string& key_system,
-    bool is_permission_granted);
+    EmeMediaType media_type,
+    EmeRobustness robustness);
 
-// Returns whether |key_system| supports persistent-release-message sessions.
-MEDIA_EXPORT bool IsPersistentReleaseMessageSessionSupported(
+// Returns the configuration rule for supporting persistent-license sessions.
+MEDIA_EXPORT EmeConfigRule GetPersistentLicenseSessionConfigRule(
+    const std::string& key_system);
+
+// Returns the configuration rule for supporting persistent-release-message
+// sessions.
+MEDIA_EXPORT EmeConfigRule GetPersistentReleaseMessageSessionConfigRule(
+    const std::string& key_system);
+
+// Returns the configuration rule for supporting a persistent state requirement.
+MEDIA_EXPORT EmeConfigRule GetPersistentStateConfigRule(
     const std::string& key_system,
-    bool is_permission_granted);
+    EmeFeatureRequirement requirement);
 
-// Returns whether |key_system| supports persistent state as requested.
-MEDIA_EXPORT bool IsPersistentStateRequirementSupported(
+// Returns the configuration rule for supporting a distinctive identifier
+// requirement.
+MEDIA_EXPORT EmeConfigRule GetDistinctiveIdentifierConfigRule(
     const std::string& key_system,
-    EmeFeatureRequirement requirement,
-    bool is_permission_granted);
-
-// Returns whether |key_system| supports distinctive identifiers as requested.
-MEDIA_EXPORT bool IsDistinctiveIdentifierRequirementSupported(
-    const std::string& key_system,
-    EmeFeatureRequirement requirement,
-    bool is_permission_granted);
+    EmeFeatureRequirement requirement);
 
 #if defined(UNIT_TEST)
 // Helper functions to add container/codec types for testing purposes.
 MEDIA_EXPORT void AddContainerMask(const std::string& container, uint32 mask);
 MEDIA_EXPORT void AddCodecMask(const std::string& codec, uint32 mask);
 #endif  // defined(UNIT_TEST)
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_KEY_SYSTEMS_H_