diff -r 000000000000 -r 6474c204b198 widget/cocoa/nsLookAndFeel.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/widget/cocoa/nsLookAndFeel.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,39 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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 nsLookAndFeel_h_
+#define nsLookAndFeel_h_
+#include "nsXPLookAndFeel.h"
+
+class nsLookAndFeel: public nsXPLookAndFeel {
+public:
+  nsLookAndFeel();
+  virtual ~nsLookAndFeel();
+
+  virtual nsresult NativeGetColor(ColorID aID, nscolor &aResult);
+  virtual nsresult GetIntImpl(IntID aID, int32_t &aResult);
+  virtual nsresult GetFloatImpl(FloatID aID, float &aResult);
+  virtual bool GetFontImpl(FontID aID, nsString& aFontName,
+                           gfxFontStyle& aFontStyle,
+                           float aDevPixPerCSSPixel);
+  virtual char16_t GetPasswordCharacterImpl()
+  {
+    // unicode value for the bullet character, used for password textfields.
+    return 0x2022;
+  }
+
+  static bool UseOverlayScrollbars();
+
+protected:
+
+  // Apple hasn't defined a constant for scollbars with two arrows on each end, so we'll use this one.
+  static const int kThemeScrollBarArrowsBoth = 2;
+  static const int kThemeScrollBarArrowsUpperLeft = 3;
+
+  static bool SystemWantsOverlayScrollbars();
+  static bool AllowOverlayScrollbarsOverlap();
+};
+
+#endif // nsLookAndFeel_h_