Implement checks for distinctiveIdentifier and persistentState in requestMediaKeySystemAccess().

media/base/key_systems.h

Index: media/base/key_systems.h
diff --git a/media/base/key_systems.h b/media/base/key_systems.h
index 73eca6f486361c6c994d03e8e97c4379783006e7..cb1ef768b72bb0042cf3a740639a893cb89dd30b 100644
--- a/media/base/key_systems.h
+++ b/media/base/key_systems.h
@@ -9,6 +9,7 @@
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
+#include "media/base/eme_constants.h"
 #include "media/base/media_export.h"
 
 namespace media {
@@ -84,6 +85,28 @@ MEDIA_EXPORT std::string GetPepperType(
     const std::string& concrete_key_system);
 #endif
 
+// Returns whether |key_system| supports persistent-license sessions.
+MEDIA_EXPORT bool IsPersistentLicenseSupported(

[ddorwin, 2015/02/19 01:41:34]

...SessionSupported

[sandersd (OOO until July 31), 2015/02/19 21:08:35]

Done.

+    const std::string& key_system,
+    bool permission_granted);

[ddorwin, 2015/02/19 01:41:34]

nit: is_...

[sandersd (OOO until July 31), 2015/02/19 21:08:35]

Done.

+
+// Returns whether |key_system| supports persistent-release-message sessions.
+MEDIA_EXPORT bool IsPersistentReleaseMessageSupported(
+    const std::string& key_system,
+    bool permission_granted);
+
+// Returns whether |key_system| supports persistent state as requested.
+MEDIA_EXPORT bool IsPersistentStateSupported(

[ddorwin, 2015/02/19 01:41:34]

IsCompatibleWithPersistentStateRequirement?

(The comment probably needs to be updated too.)

[sandersd (OOO until July 31), 2015/02/19 21:08:35]

Done.

+    const std::string& key_system,
+    EmeFeatureRequirement requirement,
+    bool permission_granted);
+
+// Returns whether |key_system| supports distinctive identifiers as requested.
+MEDIA_EXPORT bool IsDistinctiveIdentifierSupported(
+    const std::string& key_system,
+    EmeFeatureRequirement requirement,
+    bool permission_granted);
+
 #if defined(UNIT_TEST)
 // Helper functions to add container/codec types for testing purposes.
 MEDIA_EXPORT void AddContainerMask(const std::string& container, uint32 mask);