Second small fragment from "Reduce dependence on GrSurface's origin field"

TBR=bsalomon@google.com
Change-Id: Ifcfe56b1117b64821b2bfc34ba36d120227d15fa
Reviewed-on: https://skia-review.googlesource.com/25802
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
diff --git a/tests/ProxyRefTest.cpp b/tests/ProxyRefTest.cpp
index 04510b3..a30766b 100644
--- a/tests/ProxyRefTest.cpp
+++ b/tests/ProxyRefTest.cpp
@@ -80,6 +80,7 @@
 static sk_sp<GrTextureProxy> make_wrapped(GrContext* context) {
     GrSurfaceDesc desc;
     desc.fFlags = kRenderTarget_GrSurfaceFlag;
+    desc.fOrigin = kBottomLeft_GrSurfaceOrigin;
     desc.fWidth = kWidthHeight;
     desc.fHeight = kWidthHeight;
     desc.fConfig = kRGBA_8888_GrPixelConfig;