media: Add MediaDrmStorage

media/mojo/services/mojo_media_drm_storage.cc

+// 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.
+
+#include "media/mojo/services/mojo_media_drm_storage.h"
+
+#include <utility>
+
+#include "base/bind.h"
+#include "base/bind_helpers.h"
+
+namespace media {
+
+// TODO(xhwang): When connection error happens, callbacks might be dropped and
+// never run. Handle connection error to make sure callbacks will always run.
+
+MojoMediaDrmStorage::MojoMediaDrmStorage(
+    mojom::MediaDrmStoragePtr media_drm_storage_ptr)
+    : media_drm_storage_ptr_(std::move(media_drm_storage_ptr)),
+      weak_factory_(this) {
+  DVLOG(1) << __func__;
+}
+
+MojoMediaDrmStorage::~MojoMediaDrmStorage() {}
+
+void MojoMediaDrmStorage::Initialize(const url::Origin& origin) {
+  DVLOG(1) << __func__;
+  media_drm_storage_ptr_->Initialize(origin);
+}
+
+void MojoMediaDrmStorage::OnProvisioned(ResultCB result_cb) {
+  DVLOG(1) << __func__;
+  media_drm_storage_ptr_->OnProvisioned(
+      base::Bind(&MojoMediaDrmStorage::OnResult, weak_factory_.GetWeakPtr(),
+                 base::Passed(&result_cb)));
+}
+
+void MojoMediaDrmStorage::SavePersistentSession(const std::string& session_id,
+                                                const SessionData& session_data,
+                                                ResultCB result_cb) {
+  DVLOG(1) << __func__;
+  media_drm_storage_ptr_->SavePersistentSession(
+      session_id,
+      mojom::SessionData::New(session_data.key_set_id, session_data.mime_type),
+      base::Bind(&MojoMediaDrmStorage::OnResult, weak_factory_.GetWeakPtr(),
+                 base::Passed(&result_cb)));
+}
+
+void MojoMediaDrmStorage::LoadPersistentSession(
+    const std::string& session_id,
+    LoadPersistentSessionCB load_persistent_session_cb) {
+  DVLOG(1) << __func__;
+  media_drm_storage_ptr_->LoadPersistentSession(
+      session_id, base::Bind(&MojoMediaDrmStorage::OnPersistentSessionLoaded,
+                             weak_factory_.GetWeakPtr(),
+                             base::Passed(&load_persistent_session_cb)));
+}
+
+void MojoMediaDrmStorage::RemovePersistentSession(const std::string& session_id,
+                                                  ResultCB result_cb) {
+  DVLOG(1) << __func__;
+  media_drm_storage_ptr_->RemovePersistentSession(
+      session_id,
+      base::Bind(&MojoMediaDrmStorage::OnResult, weak_factory_.GetWeakPtr(),
+                 base::Passed(&result_cb)));
+}
+
+void MojoMediaDrmStorage::OnResult(ResultCB result_cb, bool success) {
+  DVLOG(1) << __func__ << ": success = " << success;
+  std::move(result_cb).Run(success);
+}
+
+void MojoMediaDrmStorage::OnPersistentSessionLoaded(
+    LoadPersistentSessionCB load_persistent_session_cb,
+    mojom::SessionDataPtr session_data) {
+  DVLOG(1) << __func__ << ": success = " << !!session_data;
+
+  std::move(load_persistent_session_cb)
+      .Run(session_data ? base::MakeUnique<SessionData>(
+                              std::move(session_data->key_set_id),
+                              std::move(session_data->mime_type))
+                        : nullptr);
+}
+
+}  // namespace media