Remove GrCoordTransform::kPosition_CoordSet

Review URL: https://codereview.chromium.org/811373002
diff --git a/src/gpu/effects/GrTextureDomain.cpp b/src/gpu/effects/GrTextureDomain.cpp
index f1ef618..3531106 100644
--- a/src/gpu/effects/GrTextureDomain.cpp
+++ b/src/gpu/effects/GrTextureDomain.cpp
@@ -301,7 +301,7 @@
         (GrTextureDomain::Mode) random->nextULessThan(GrTextureDomain::kModeCount);
     const SkMatrix& matrix = GrProcessorUnitTest::TestMatrix(random);
     bool bilerp = mode != GrTextureDomain::kRepeat_Mode ? random->nextBool() : false;
-    GrCoordSet coords = random->nextBool() ? kLocal_GrCoordSet : kPosition_GrCoordSet;
+    GrCoordSet coords = random->nextBool() ? kLocal_GrCoordSet : kDevice_GrCoordSet;
     return GrTextureDomainEffect::Create(textures[texIdx],
                                          matrix,
                                          domain,