diff -r 000000000000 -r 6474c204b198 gfx/skia/trunk/src/core/SkPaintPriv.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/skia/trunk/src/core/SkPaintPriv.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,25 @@
+/*
+ * Copyright 2013 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkPaintPriv_DEFINED
+#define SkPaintPriv_DEFINED
+
+class SkBitmap;
+class SkPaint;
+
+#include "SkTypes.h"
+/** Returns true if draw calls that use the paint will completely occlude
+    canvas contents that are covered by the draw.
+    @param paint The paint to be analyzed, NULL is equivalent to
+        the default paint.
+    @param bmpReplacesShader a bitmap to be used in place of the paint's
+        shader.
+    @return true if paint is opaque
+*/
+bool isPaintOpaque(const SkPaint* paint,
+                   const SkBitmap* bmpReplacesShader = NULL);
+#endif