make GR_TEST_UTILS=0 work

Change-Id: Icce35140ca08b65217b32e6b1ffc6ad2f38ab37f
Reviewed-on: https://skia-review.googlesource.com/7840
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
diff --git a/src/effects/SkMorphologyImageFilter.cpp b/src/effects/SkMorphologyImageFilter.cpp
index 75e019b..2c813e2 100644
--- a/src/effects/SkMorphologyImageFilter.cpp
+++ b/src/effects/SkMorphologyImageFilter.cpp
@@ -373,6 +373,7 @@
 
 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrMorphologyEffect);
 
+#if GR_TEST_UTILS
 sk_sp<GrFragmentProcessor> GrMorphologyEffect::TestCreate(GrProcessorTestData* d) {
     int texIdx = d->fRandom->nextBool() ? GrProcessorUnitTest::kSkiaPMTextureIdx :
                                           GrProcessorUnitTest::kAlphaTextureIdx;
@@ -384,6 +385,7 @@
 
     return GrMorphologyEffect::Make(d->fTextures[texIdx], dir, radius, type);
 }
+#endif
 
 
 static void apply_morphology_rect(GrTextureProvider* provider,