make growToInclude private

Bug: skia:
Change-Id: Id55344ba2f33563d22c2bf4d5829a9a31095a47d
Reviewed-on: https://skia-review.googlesource.com/92143
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Cary Clark <caryclark@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
diff --git a/tests/RectTest.cpp b/tests/RectTest.cpp
index 820586c..ae54f4b 100644
--- a/tests/RectTest.cpp
+++ b/tests/RectTest.cpp
@@ -88,3 +88,8 @@
     test_stroke_width_clipping(reporter);
     test_skbug4406(reporter);
 }
+
+DEF_TEST(Rect_grow, reporter) {
+    test_stroke_width_clipping(reporter);
+    test_skbug4406(reporter);
+}