1 files changed, 28 insertions, 0 deletions
diff --git a/dom/ipc/CoalescedWheelData.h b/dom/ipc/CoalescedWheelData.h
new file mode 100644
index 0000000000..cd322d8874
--- /dev/null
+++ b/dom/ipc/CoalescedWheelData.h
@@ -0,0 +1,28 @@
+/* -*- 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 mozilla_dom_CoalescedWheelData_h
+#define mozilla_dom_CoalescedWheelData_h
+
+#include "CoalescedInputData.h"
+#include "mozilla/MouseEvents.h"
+
+namespace mozilla::dom {
+
+class CoalescedWheelData final : public CoalescedInputData<WidgetWheelEvent> {
+ public:
+  void Coalesce(const WidgetWheelEvent& aEvent,
+                const ScrollableLayerGuid& aGuid,
+                const uint64_t& aInputBlockId);
+
+  bool CanCoalesce(const WidgetWheelEvent& aEvent,
+                   const ScrollableLayerGuid& aGuid,
+                   const uint64_t& aInputBlockId);
+};
+
+}  // namespace mozilla::dom
+
+#endif  // mozilla_dom_CoalescedWheelData_h