1 files changed, 44 insertions, 0 deletions
diff --git a/dom/fs/parent/FileSystemStreamCallbacks.h b/dom/fs/parent/FileSystemStreamCallbacks.h
new file mode 100644
index 0000000000..37028b9f9c
--- /dev/null
+++ b/dom/fs/parent/FileSystemStreamCallbacks.h
@@ -0,0 +1,44 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef DOM_FS_PARENT_FILESYSTEMSTREAMCALLBACKS_H_
+#define DOM_FS_PARENT_FILESYSTEMSTREAMCALLBACKS_H_
+
+#include "mozilla/dom/quota/RemoteQuotaObjectParentTracker.h"
+#include "nsIInterfaceRequestor.h"
+#include "nsTHashSet.h"
+
+namespace mozilla::dom {
+
+class FileSystemStreamCallbacks : public nsIInterfaceRequestor,
+                                  public quota::RemoteQuotaObjectParentTracker {
+ public:
+  FileSystemStreamCallbacks() = default;
+
+  bool HasNoRemoteQuotaObjectParents() const;
+
+  void SetRemoteQuotaObjectParentCallback(std::function<void()>&& aCallback);
+
+  NS_DECL_THREADSAFE_ISUPPORTS
+
+  NS_DECL_NSIINTERFACEREQUESTOR
+
+  void RegisterRemoteQuotaObjectParent(
+      NotNull<quota::RemoteQuotaObjectParent*> aActor) override;
+
+  void UnregisterRemoteQuotaObjectParent(
+      NotNull<quota::RemoteQuotaObjectParent*> aActor) override;
+
+ private:
+  virtual ~FileSystemStreamCallbacks() = default;
+
+  nsTHashSet<quota::RemoteQuotaObjectParent*> mRemoteQuotaObjectParents;
+  std::function<void()> mRemoteQuotaObjectParentCallback;
+};
+
+}  // namespace mozilla::dom
+
+#endif  // DOM_FS_PARENT_FILESYSTEMSTREAMCALLBACKS_H_