EME: Close existing sessions on CDM failure

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>
 #include <utility>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/synchronization/lock.h"
 #include "base/threading/thread_checker.h"
 #include "media/base/cdm_context.h"
 #include "media/base/cdm_initialized_promise.h"
+#include "media/base/cdm_session_tracker.h"
 #include "media/base/media_keys.h"
 #include "media/mojo/interfaces/content_decryption_module.mojom.h"
 #include "mojo/public/cpp/bindings/binding.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 }
 
 namespace media {
 
 class MojoDecryptor;
 
 // A MediaKeys that proxies to a mojom::ContentDecryptionModule. That
 // mojom::ContentDecryptionModule proxies back to the MojoCdm via the
 // mojom::ContentDecryptionModuleClient interface.
 class MojoCdm : public MediaKeys,
                 public CdmContext,
                 public mojom::ContentDecryptionModuleClient {
  public:
   using MessageType = MediaKeys::MessageType;
 
   static void Create(
       const std::string& key_system,
       const GURL& security_origin,
-      const media::CdmConfig& cdm_config,
+      const CdmConfig& cdm_config,
       mojom::ContentDecryptionModulePtr remote_cdm,
-      const media::SessionMessageCB& session_message_cb,
-      const media::SessionClosedCB& session_closed_cb,
-      const media::SessionKeysChangeCB& session_keys_change_cb,
-      const media::SessionExpirationUpdateCB& session_expiration_update_cb,
-      const media::CdmCreatedCB& cdm_created_cb);
+      const SessionMessageCB& session_message_cb,
+      const SessionClosedCB& session_closed_cb,
+      const SessionKeysChangeCB& session_keys_change_cb,
+      const SessionExpirationUpdateCB& session_expiration_update_cb,
+      const CdmCreatedCB& cdm_created_cb);
 
   // MediaKeys implementation.
   void SetServerCertificate(const std::vector<uint8_t>& certificate,
                             std::unique_ptr<SimpleCdmPromise> promise) final;
   void CreateSessionAndGenerateRequest(
       SessionType session_type,
       EmeInitDataType init_data_type,
       const std::vector<uint8_t>& init_data,
       std::unique_ptr<NewSessionCdmPromise> promise) final;
   void LoadSession(SessionType session_type,
                    const std::string& session_id,
                    std::unique_ptr<NewSessionCdmPromise> promise) final;
   void UpdateSession(const std::string& session_id,
                      const std::vector<uint8_t>& response,
                      std::unique_ptr<SimpleCdmPromise> promise) final;
   void CloseSession(const std::string& session_id,
                     std::unique_ptr<SimpleCdmPromise> promise) final;
   void RemoveSession(const std::string& session_id,
                      std::unique_ptr<SimpleCdmPromise> promise) final;
   CdmContext* GetCdmContext() final;
 
   // CdmContext implementation. Can be called on a different thread.
   // All GetDecryptor() calls must be made on the same thread.
-  media::Decryptor* GetDecryptor() final;
+  Decryptor* GetDecryptor() final;
   int GetCdmId() const final;
 
  private:
   MojoCdm(mojom::ContentDecryptionModulePtr remote_cdm,
           const SessionMessageCB& session_message_cb,
           const SessionClosedCB& session_closed_cb,
           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 media::CdmConfig& cdm_config,
+                     const CdmConfig& cdm_config,
                      std::unique_ptr<CdmInitializedPromise> promise);
 
   void OnConnectionError();
 
   // 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(
@@ skipping 46 matching lines @@
 
   // Callbacks for firing session events.
   SessionMessageCB session_message_cb_;
   SessionClosedCB session_closed_cb_;
   SessionKeysChangeCB session_keys_change_cb_;
   SessionExpirationUpdateCB session_expiration_update_cb_;
 
   // Pending promise for InitializeCdm().
   std::unique_ptr<CdmInitializedPromise> pending_init_promise_;
 
+  // Keep track of current sessions.
+  CdmSessionTracker cdm_session_tracker_;
+
   // 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_