diff -r 000000000000 -r 6474c204b198 gfx/thebes/gfxQuartzImageSurface.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/thebes/gfxQuartzImageSurface.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,32 @@
+/* -*- Mode: C++; tab-width: 20; 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 GFX_QUARTZIMAGESURFACE_H
+#define GFX_QUARTZIMAGESURFACE_H
+
+#include "gfxASurface.h"
+#include "nsSize.h"
+
+class gfxImageSurface;
+
+class gfxQuartzImageSurface : public gfxASurface {
+public:
+    gfxQuartzImageSurface(gfxImageSurface *imageSurface);
+    gfxQuartzImageSurface(cairo_surface_t *csurf);
+
+    virtual ~gfxQuartzImageSurface();
+
+    already_AddRefed<gfxImageSurface> GetAsImageSurface();
+    virtual int32_t KnownMemoryUsed();
+    virtual const gfxIntSize GetSize() const { return gfxIntSize(mSize.width, mSize.height); }
+
+protected:
+    gfxIntSize mSize;
+
+private:
+    gfxIntSize ComputeSize();
+};
+
+#endif /* GFX_QUARTZIMAGESURFACE_H */