diff -r 000000000000 -r 6474c204b198 gfx/skia/trunk/include/utils/SkCubicInterval.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/skia/trunk/include/utils/SkCubicInterval.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,22 @@
+
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+#ifndef SkCubicInterval_DEFINED
+#define SkCubicInterval_DEFINED
+
+#include "SkPoint.h"
+
+SkScalar SkEvalCubicInterval(SkScalar x1, SkScalar y1,
+                             SkScalar x2, SkScalar y2,
+                             SkScalar unitX);
+
+static inline SkScalar SkEvalCubicInterval(const SkPoint pts[2], SkScalar x) {
+    return SkEvalCubicInterval(pts[0].fX, pts[0].fY,
+                               pts[1].fX, pts[1].fY, x);
+}
+
+#endif