diff -r 000000000000 -r 6474c204b198 layout/xul/nsPopupSetFrame.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/layout/xul/nsPopupSetFrame.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,63 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * 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 nsPopupSetFrame_h__
+#define nsPopupSetFrame_h__
+
+#include "mozilla/Attributes.h"
+#include "nsIAtom.h"
+#include "nsBoxFrame.h"
+
+nsIFrame* NS_NewPopupSetFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
+
+class nsPopupSetFrame : public nsBoxFrame
+{
+public:
+  NS_DECL_FRAMEARENA_HELPERS
+
+  nsPopupSetFrame(nsIPresShell* aShell, nsStyleContext* aContext):
+    nsBoxFrame(aShell, aContext) {}
+
+  ~nsPopupSetFrame() {}
+  
+  virtual void Init(nsIContent*      aContent,
+                    nsIFrame*        aParent,
+                    nsIFrame*        aPrevInFlow) MOZ_OVERRIDE;
+  virtual nsresult AppendFrames(ChildListID     aListID,
+                                nsFrameList&    aFrameList) MOZ_OVERRIDE;
+  virtual nsresult RemoveFrame(ChildListID     aListID,
+                               nsIFrame*       aOldFrame) MOZ_OVERRIDE;
+  virtual nsresult InsertFrames(ChildListID     aListID,
+                                nsIFrame*       aPrevFrame,
+                                nsFrameList&    aFrameList) MOZ_OVERRIDE;
+  virtual nsresult  SetInitialChildList(ChildListID  aListID,
+                                        nsFrameList& aChildList) MOZ_OVERRIDE;
+
+  virtual const nsFrameList& GetChildList(ChildListID aList) const MOZ_OVERRIDE;
+  virtual void GetChildLists(nsTArray<ChildList>* aLists) const MOZ_OVERRIDE;
+
+  NS_IMETHOD DoLayout(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
+
+  // Used to destroy our popup frames.
+  virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
+
+  virtual nsIAtom* GetType() const MOZ_OVERRIDE;
+
+#ifdef DEBUG_FRAME_DUMP
+  virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE
+  {
+      return MakeFrameName(NS_LITERAL_STRING("PopupSet"), aResult);
+  }
+#endif
+
+protected:
+  void AddPopupFrameList(nsFrameList& aPopupFrameList);
+  void RemovePopupFrame(nsIFrame* aPopup);
+  
+  nsFrameList mPopupList;
+};
+
+#endif