diff -r 000000000000 -r 6474c204b198 gfx/thebes/gfxPlatformGtk.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/thebes/gfxPlatformGtk.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,111 @@
+/* -*- 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_PLATFORM_GTK_H
+#define GFX_PLATFORM_GTK_H
+
+#include "gfxPlatform.h"
+#include "nsAutoRef.h"
+#include "nsTArray.h"
+
+#if (MOZ_WIDGET_GTK == 2)
+extern "C" {
+    typedef struct _GdkDrawable GdkDrawable;
+}
+#endif
+
+class gfxFontconfigUtils;
+
+class gfxPlatformGtk : public gfxPlatform {
+public:
+    gfxPlatformGtk();
+    virtual ~gfxPlatformGtk();
+
+    static gfxPlatformGtk *GetPlatform() {
+        return (gfxPlatformGtk*) gfxPlatform::GetPlatform();
+    }
+
+    virtual already_AddRefed<gfxASurface>
+      CreateOffscreenSurface(const IntSize& size,
+                             gfxContentType contentType) MOZ_OVERRIDE;
+
+    mozilla::TemporaryRef<mozilla::gfx::ScaledFont>
+      GetScaledFontForFont(mozilla::gfx::DrawTarget* aTarget, gfxFont *aFont);
+
+    nsresult GetFontList(nsIAtom *aLangGroup,
+                         const nsACString& aGenericFamily,
+                         nsTArray<nsString>& aListOfFonts);
+
+    nsresult UpdateFontList();
+
+    nsresult ResolveFontName(const nsAString& aFontName,
+                             FontResolverCallback aCallback,
+                             void *aClosure, bool& aAborted);
+
+    nsresult GetStandardFamilyName(const nsAString& aFontName, nsAString& aFamilyName);
+
+    gfxFontGroup *CreateFontGroup(const nsAString &aFamilies,
+                                  const gfxFontStyle *aStyle,
+                                  gfxUserFontSet *aUserFontSet);
+
+    /**
+     * Look up a local platform font using the full font face name (needed to
+     * support @font-face src local() )
+     */
+    virtual gfxFontEntry* LookupLocalFont(const gfxProxyFontEntry *aProxyEntry,
+                                          const nsAString& aFontName);
+
+    /**
+     * Activate a platform font (needed to support @font-face src url() )
+     *
+     */
+    virtual gfxFontEntry* MakePlatformFont(const gfxProxyFontEntry *aProxyEntry,
+                                           const uint8_t *aFontData,
+                                           uint32_t aLength);
+
+    /**
+     * Check whether format is supported on a platform or not (if unclear,
+     * returns true).
+     */
+    virtual bool IsFontFormatSupported(nsIURI *aFontURI,
+                                         uint32_t aFormatFlags);
+
+#if (MOZ_WIDGET_GTK == 2)
+    static void SetGdkDrawable(cairo_surface_t *target,
+                               GdkDrawable *drawable);
+    static GdkDrawable *GetGdkDrawable(cairo_surface_t *target);
+#endif
+
+    static int32_t GetDPI();
+
+    bool UseXRender() {
+#if defined(MOZ_X11)
+        if (GetContentBackend() != mozilla::gfx::BackendType::NONE &&
+            GetContentBackend() != mozilla::gfx::BackendType::CAIRO)
+            return false;
+
+        return sUseXRender;
+#else
+        return false;
+#endif
+    }
+
+    virtual gfxImageFormat GetOffscreenFormat();
+
+    virtual int GetScreenDepth() const;
+
+protected:
+    static gfxFontconfigUtils *sFontconfigUtils;
+
+private:
+    virtual void GetPlatformCMSOutputProfile(void *&mem, size_t &size);
+
+    virtual bool SupportsOffMainThreadCompositing();
+#ifdef MOZ_X11
+    static bool sUseXRender;
+#endif
+};
+
+#endif /* GFX_PLATFORM_GTK_H */