diff -r 000000000000 -r 6474c204b198 layout/forms/nsIFormControlFrame.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/layout/forms/nsIFormControlFrame.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,42 @@
+/* -*- 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 nsIFormControlFrame_h___
+#define nsIFormControlFrame_h___
+
+#include "nsQueryFrame.h"
+
+class nsAString;
+class nsIAtom;
+
+/** 
+  * nsIFormControlFrame is the common interface for frames of form controls. It
+  * provides a uniform way of creating widgets, resizing, and painting.
+  * @see nsLeafFrame and its base classes for more info
+  */
+class nsIFormControlFrame : public nsQueryFrame
+{
+public:
+  NS_DECL_QUERYFRAME_TARGET(nsIFormControlFrame)
+
+  /**
+   * 
+   * @param aOn
+   * @param aRepaint
+   */
+  virtual void SetFocus(bool aOn = true, bool aRepaint = false) = 0;
+
+  /**
+   * Set a property on the form control frame.
+   *
+   * @param aName name of the property to set
+   * @param aValue value of the property
+   * @returns NS_OK if the property name is valid, otherwise an error code
+   */
+  virtual nsresult SetFormProperty(nsIAtom* aName, const nsAString& aValue) = 0;
+};
+
+#endif
+