1 files changed, 39 insertions, 0 deletions
diff --git a/layout/base/nsFrameTraversal.h b/layout/base/nsFrameTraversal.h
new file mode 100644
index 0000000000..d41d02b52d
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+++ b/layout/base/nsFrameTraversal.h
@@ -0,0 +1,39 @@
+/* -*- 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 NSFRAMETRAVERSAL_H
+#define NSFRAMETRAVERSAL_H
+
+#include "mozilla/Attributes.h"
+#include "nsIFrameTraversal.h"
+
+class nsIFrame;
+
+nsresult NS_NewFrameTraversal(nsIFrameEnumerator** aEnumerator,
+                              nsPresContext* aPresContext, nsIFrame* aStart,
+                              nsIteratorType aType, bool aVisual,
+                              bool aLockInScrollView, bool aFollowOOFs,
+                              bool aSkipPopupChecks);
+
+nsresult NS_CreateFrameTraversal(nsIFrameTraversal** aResult);
+
+class nsFrameTraversal final : public nsIFrameTraversal {
+ public:
+  nsFrameTraversal();
+
+  NS_DECL_ISUPPORTS
+
+  NS_IMETHOD NewFrameTraversal(nsIFrameEnumerator** aEnumerator,
+                               nsPresContext* aPresContext, nsIFrame* aStart,
+                               int32_t aType, bool aVisual,
+                               bool aLockInScrollView, bool aFollowOOFs,
+                               bool aSkipPopupChecks) override;
+
+ protected:
+  virtual ~nsFrameTraversal();
+};
+
+#endif  // NSFRAMETRAVERSAL_H