diff -r 000000000000 -r 6474c204b198 gfx/skia/trunk/include/effects/SkPixelXorXfermode.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/skia/trunk/include/effects/SkPixelXorXfermode.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2007 The Android Open Source Project
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkPixelXorXfermode_DEFINED
+#define SkPixelXorXfermode_DEFINED
+
+#include "SkXfermode.h"
+
+/** SkPixelXorXfermode implements a simple pixel xor (op ^ src ^ dst).
+    This transformation does not follow premultiplied conventions, therefore
+    this proc *always* returns an opaque color (alpha == 255). Thus it is
+    not really usefull for operating on blended colors.
+*/
+class SK_API SkPixelXorXfermode : public SkXfermode {
+public:
+    static SkPixelXorXfermode* Create(SkColor opColor) {
+        return SkNEW_ARGS(SkPixelXorXfermode, (opColor));
+    }
+
+    SK_TO_STRING_OVERRIDE()
+    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkPixelXorXfermode)
+
+protected:
+    SkPixelXorXfermode(SkReadBuffer& rb);
+    virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
+
+    // override from SkXfermode
+    virtual SkPMColor xferColor(SkPMColor src, SkPMColor dst) const;
+
+#ifdef SK_SUPPORT_LEGACY_PUBLICEFFECTCONSTRUCTORS
+public:
+#endif
+    SkPixelXorXfermode(SkColor opColor) : fOpColor(opColor) {}
+
+private:
+    SkColor fOpColor;
+
+    typedef SkXfermode INHERITED;
+};
+
+#endif