media: Add experimental feature to enable Mojo CDM on desktop Chromium

media/cdm/cdm_adapter_factory.h

+// Copyright 2017 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_CDM_CDM_ADAPTER_FACTORY_H_
+#define MEDIA_CDM_CDM_ADAPTER_FACTORY_H_
+
+#include "base/macros.h"
+#include "media/base/cdm_factory.h"
+#include "media/base/media_export.h"
+#include "media/cdm/cdm_allocator.h"
+
+namespace media {
+
+class MEDIA_EXPORT CdmAdapterFactory final : public CdmFactory {
+ public:
+  explicit CdmAdapterFactory(CdmAllocator::CreationCB allocator_creation_cb);
+  ~CdmAdapterFactory() override;
+
+  // CdmFactory implementation.
+  void Create(const std::string& key_system,
+              const GURL& security_origin,
+              const CdmConfig& cdm_config,
+              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) override;
+
+ private:
+  // Callback to create CdmAllocator for the created CDM.
+  CdmAllocator::CreationCB allocator_creation_cb_;
+
+  DISALLOW_COPY_AND_ASSIGN(CdmAdapterFactory);
+};
+
+}  // namespace media
+
+#endif  // MEDIA_CDM_CDM_ADAPTER_FACTORY_H_