1 files changed, 37 insertions, 0 deletions
diff --git a/dom/quota/ForwardDecls.h b/dom/quota/ForwardDecls.h
new file mode 100644
index 0000000000..6989e91d69
--- /dev/null
+++ b/dom/quota/ForwardDecls.h
@@ -0,0 +1,37 @@
+/* -*- 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_QUOTA_FORWARD_DECLS_H_
+#define DOM_QUOTA_FORWARD_DECLS_H_
+
+#include <cstdint>
+#include "mozilla/dom/quota/Config.h"
+
+enum class nsresult : uint32_t;
+
+namespace mozilla {
+
+#ifdef QM_ERROR_STACKS_ENABLED
+class QMResult;
+#else
+using QMResult = nsresult;
+#endif
+
+struct Ok;
+template <typename V, typename E>
+class Result;
+
+using OkOrErr = Result<Ok, QMResult>;
+
+template <typename ResolveValueT, typename RejectValueT, bool IsExclusive>
+class MozPromise;
+
+using BoolPromise = MozPromise<bool, nsresult, false>;
+using Int64Promise = MozPromise<int64_t, nsresult, false>;
+
+}  // namespace mozilla
+
+#endif  // DOM_QUOTA_FORWARD_DECLS_H_