SkRasterPipeline in SkArenaAlloc

Bug: skia:6673

Change-Id: Ia2bae4f6a9039a007a10b6b45bcf2f0854bf6e5c
Reviewed-on: https://skia-review.googlesource.com/17794
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
diff --git a/tests/ParametricStageTest.cpp b/tests/ParametricStageTest.cpp
index 89b67c0..6edb9d9 100644
--- a/tests/ParametricStageTest.cpp
+++ b/tests/ParametricStageTest.cpp
@@ -19,7 +19,7 @@
     const float* ip = in;
     float*       op = out;
 
-    SkRasterPipeline p;
+    SkRasterPipeline_<256> p;
     p.append(SkRasterPipeline::load_f32, &ip);
     p.append(SkRasterPipeline::parametric_r, &fn);
     p.append(SkRasterPipeline::parametric_g, &fn);