diff -r 000000000000 -r 6474c204b198 gfx/skia/trunk/include/effects/SkTransparentShader.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/skia/trunk/include/effects/SkTransparentShader.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2006 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 SkTransparentShader_DEFINED
+#define SkTransparentShader_DEFINED
+
+#include "SkShader.h"
+
+class SK_API SkTransparentShader : public SkShader {
+public:
+    SkTransparentShader() {}
+
+    virtual uint32_t getFlags() SK_OVERRIDE;
+    virtual bool    setContext(const SkBitmap& device,
+                               const SkPaint& paint,
+                               const SkMatrix& matrix) SK_OVERRIDE;
+    virtual void    shadeSpan(int x, int y, SkPMColor[], int count) SK_OVERRIDE;
+    virtual void    shadeSpan16(int x, int y, uint16_t span[], int count) SK_OVERRIDE;
+
+    SK_TO_STRING_OVERRIDE()
+    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkTransparentShader)
+
+private:
+    // these are a cache from the call to setContext()
+    const SkBitmap* fDevice;
+    uint8_t         fAlpha;
+
+    SkTransparentShader(SkReadBuffer& buffer) : INHERITED(buffer) {}
+
+    typedef SkShader INHERITED;
+};
+
+#endif