diff -r 000000000000 -r 6474c204b198 layout/xul/nsXULLabelFrame.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/layout/xul/nsXULLabelFrame.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,57 @@
+/* -*- 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/. */
+
+/* derived class of nsBlockFrame used for xul:label elements */
+
+#ifndef nsXULLabelFrame_h_
+#define nsXULLabelFrame_h_
+
+#include "mozilla/Attributes.h"
+#include "nsBlockFrame.h"
+
+#ifndef MOZ_XUL
+#error "This file should not be included"
+#endif
+
+class nsXULLabelFrame : public nsBlockFrame
+{
+public:
+  NS_DECL_FRAMEARENA_HELPERS
+
+  friend nsIFrame* NS_NewXULLabelFrame(nsIPresShell* aPresShell,
+                                       nsStyleContext *aContext);
+  
+  // nsIFrame
+  virtual void Init(nsIContent*      aContent,
+                    nsIFrame*        aParent,
+                    nsIFrame*        aPrevInFlow) MOZ_OVERRIDE;
+
+  virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
+
+  virtual nsresult AttributeChanged(int32_t aNameSpaceID,
+                                    nsIAtom* aAttribute,
+                                    int32_t aModType) MOZ_OVERRIDE;
+
+  /**
+   * Get the "type" of the frame
+   *
+   * @see nsGkAtoms::XULLabelFrame
+   */
+  virtual nsIAtom* GetType() const MOZ_OVERRIDE;
+  
+#ifdef DEBUG_FRAME_DUMP
+  virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE;
+#endif
+
+protected:
+  nsXULLabelFrame(nsStyleContext *aContext) : nsBlockFrame(aContext) {}
+
+  nsresult RegUnregAccessKey(bool aDoReg);
+};
+
+nsIFrame*
+NS_NewXULLabelFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
+
+#endif /* !defined(nsXULLabelFrame_h_) */