1 files changed, 50 insertions, 0 deletions
diff --git a/layout/svg/SVGSymbolFrame.h b/layout/svg/SVGSymbolFrame.h
new file mode 100644
index 0000000000..bd11efe41e
--- /dev/null
+++ b/layout/svg/SVGSymbolFrame.h
@@ -0,0 +1,50 @@
+/* -*- 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 LAYOUT_SVG_SVGSYMBOLFRAME_H_
+#define LAYOUT_SVG_SVGSYMBOLFRAME_H_
+
+#include "SVGViewportFrame.h"
+
+namespace mozilla {
+class PresShell;
+}  // namespace mozilla
+
+nsIFrame* NS_NewSVGSymbolFrame(mozilla::PresShell* aPresShell,
+                               mozilla::ComputedStyle* aStyle);
+
+namespace mozilla {
+
+class SVGSymbolFrame final : public SVGViewportFrame {
+  friend nsIFrame* ::NS_NewSVGSymbolFrame(mozilla::PresShell* aPresShell,
+                                          ComputedStyle* aStyle);
+
+ protected:
+  explicit SVGSymbolFrame(ComputedStyle* aStyle, nsPresContext* aPresContext)
+      : SVGViewportFrame(aStyle, aPresContext, kClassID) {
+    AddStateBits(NS_STATE_SVG_RENDERING_OBSERVER_CONTAINER);
+  }
+
+ public:
+  NS_DECL_QUERYFRAME
+  NS_DECL_FRAMEARENA_HELPERS(SVGSymbolFrame)
+
+  void Init(nsIContent* aContent, nsContainerFrame* aParent,
+            nsIFrame* aPrevInFlow) override;
+
+  void BuildDisplayList(nsDisplayListBuilder* aBuilder,
+                        const nsDisplayListSet& aLists) override;
+
+#ifdef DEBUG_FRAME_DUMP
+  nsresult GetFrameName(nsAString& aResult) const override {
+    return MakeFrameName(u"SVGSymbol"_ns, aResult);
+  }
+#endif
+};
+
+}  // namespace mozilla
+
+#endif  // LAYOUT_SVG_SVGSYMBOLFRAME_H_