media: Avoid access violation in MojoCdm after connection error

media/mojo/clients/mojo_cdm.h

 // 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.
 
 #ifndef MEDIA_MOJO_CLIENTS_MOJO_CDM_H_
 #define MEDIA_MOJO_CLIENTS_MOJO_CDM_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 71 matching lines @@
           const SessionKeysChangeCB& session_keys_change_cb,
           const SessionExpirationUpdateCB& session_expiration_update_cb);
 
   ~MojoCdm() final;
 
   void InitializeCdm(const std::string& key_system,
                      const GURL& security_origin,
                      const CdmConfig& cdm_config,
                      std::unique_ptr<CdmInitializedPromise> promise);
 
-  void OnConnectionError();
+  void OnConnectionError(uint32_t custom_reason,
+                         const std::string& description);
 
   // mojom::ContentDecryptionModuleClient implementation.
   void OnSessionMessage(const std::string& session_id,
                         MessageType message_type,
                         const std::vector<uint8_t>& message) final;
   void OnSessionClosed(const std::string& session_id) final;
   void OnSessionKeysChange(
       const std::string& session_id,
       bool has_additional_usable_key,
       std::vector<mojom::CdmKeyInformationPtr> keys_info) final;
@@ skipping 55 matching lines @@
 
   // This must be the last member.
   base::WeakPtrFactory<MojoCdm> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MojoCdm);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_MOJO_CLIENTS_MOJO_CDM_H_