media: Add MediaDrmStorage

media/mojo/services/mojo_media_drm_storage.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_MOJO_SERVICES_MOJO_MEDIA_DRM_STORAGE_H_
+#define MEDIA_MOJO_SERVICES_MOJO_MEDIA_DRM_STORAGE_H_
+
+#include "base/compiler_specific.h"
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "media/base/android/media_drm_storage.h"
+#include "media/mojo/interfaces/media_drm_storage.mojom.h"
+#include "media/mojo/services/media_mojo_export.h"
+
+namespace media {
+
+// A MediaDrmStorage that proxies to a mojom::MediaDrmStoragePtr.
+class MEDIA_MOJO_EXPORT MojoMediaDrmStorage
+    : NON_EXPORTED_BASE(public MediaDrmStorage) {
+ public:
+  explicit MojoMediaDrmStorage(mojom::MediaDrmStoragePtr media_drm_storage_ptr);
+  ~MojoMediaDrmStorage() final;
+
+  // MediaDrmStorage implementation:
+  void Initialize(const url::Origin& origin) final;
+  void OnProvisioned(ResultCB result_cb) final;
+  void SavePersistentSession(const std::string& session_id,
+                             const std::vector<uint8_t>& key_set_id,
+                             const std::string& mime_type,
+                             ResultCB result_cb) final;
+  void LoadPersistentSession(
+      const std::string& session_id,
+      LoadPersistentSessionCB load_persistent_session_cb) final;
+  void RemovePersistentSession(const std::string& session_id,
+                               ResultCB result_cb) final;
+
+ private:
+  void OnResult(ResultCB result_cb, bool success);
+  void OnPersistentSessionLoaded(
+      LoadPersistentSessionCB load_persistent_session_cb,
+      bool success,
+      const std::vector<uint8_t>& key_set_id,
+      const std::string& mime_type);
+
+  mojom::MediaDrmStoragePtr media_drm_storage_ptr_;
+  base::WeakPtrFactory<MojoMediaDrmStorage> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(MojoMediaDrmStorage);
+};
+
+}  // namespace media
+
+#endif  // MEDIA_MOJO_SERVICES_MOJO_MEDIA_DRM_STORAGE_H_