Pass key_information on SessionKeysChange message

media/mojo/interfaces/content_decryption_module.mojom

 // Copyright 2014 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.
 
 module mojo;
 
 import "media/mojo/interfaces/decryptor.mojom";
 
 // Transport layer of media::MediaKeys::Exception (see media/base/media_keys.h).
 // This is used for ContentDecryptionModule (CDM) promise rejections.
 // Note: This can also be used for session errors in prefixed API.
 enum CdmException {
   NOT_SUPPORTED_ERROR,
   INVALID_STATE_ERROR,
   INVALID_ACCESS_ERROR,
   QUOTA_EXCEEDED_ERROR,
   UNKNOWN_ERROR,
   CLIENT_ERROR,
   OUTPUT_ERROR
 };
 
+// Transport layer of media::CdmKeyInformation::KeyStatus (see
+// media/base/cdm_key_information.h). This is used for indicating the status
+// of a specific key ID.
+enum CdmKeyStatus {
+  USABLE,
+  INTERNAL_ERROR,
+  EXPIRED,
+  OUTPUT_NOT_ALLOWED
+};
+
 // Transport layer of media::CdmPromise (see media/base/cdm_promise.h).
 // - When |success| is true, the promise is resolved and all other fields should
 //   be ignored.
 // - When |success| is false, the promise is rejected with |exception|,
 //   |system_code| and |error_message|.
 struct CdmPromiseResult {
   bool success;
   CdmException exception;
   uint32 system_code;
   string error_message;
 };
 
+// Transport layer of media::CdmKeyInformation (see
+// media/base/cdm_key_information.h). It is used to specify a key_id and it's
+// associated status.
+struct CdmKeyInformation {
+  array<uint8> key_id;
+  CdmKeyStatus status;
+  uint32 system_code;
+};
+
 // An interface that represents a CDM in the Encrypted Media Extensions (EME)
 // spec (https://w3c.github.io/encrypted-media/). See media/base/media_keys.h.
 [Client=ContentDecryptionModuleClient]
 interface ContentDecryptionModule {
   // See media::MediaKeys::SessionType.
   enum SessionType {
     TEMPORARY_SESSION,
     PERSISTENT_SESSION
   };
 
@@ skipping 47 matching lines @@
 // Session callbacks. See media/base/media_keys.h for details.
 interface ContentDecryptionModuleClient {
   OnSessionMessage(string session_id, array<uint8> message,
                    string destination_url);
 
   OnSessionClosed(string session_id);
 
   OnSessionError(string session_id, CdmException exception,
                  uint32 system_code, string error_message);
 
-  OnSessionKeysChange(string session_id, bool has_additional_usable_key);
+  OnSessionKeysChange(string session_id, bool has_additional_usable_key,
+                      array<CdmKeyInformation> key_information);
 
   OnSessionExpirationUpdate(string session_id, int64 new_expiry_time_usec);
 };