1 files changed, 26 insertions, 0 deletions
diff --git a/dom/webgpu/ipc/PWebGPUTypes.ipdlh b/dom/webgpu/ipc/PWebGPUTypes.ipdlh
new file mode 100644
index 0000000000..98f062856c
--- /dev/null
+++ b/dom/webgpu/ipc/PWebGPUTypes.ipdlh
@@ -0,0 +1,26 @@
+/* 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/. */
+
+using struct mozilla::null_t from "mozilla/ipc/IPCCore.h";
+
+namespace mozilla {
+namespace webgpu {
+
+struct BufferMapSuccess {
+    uint64_t offset;
+    uint64_t size;
+    bool writable;
+};
+
+struct BufferMapError {
+    nsCString message;
+};
+
+union BufferMapResult {
+    BufferMapSuccess;
+    BufferMapError;
+};
+
+}  // namespace layers
+}  // namespace mozilla