Reduce dependence on GrSurface's origin field (take 2)

TBR=bsalomon@google.com
Change-Id: Ia238fc66b0fe10a3626c7967b2ac1f1a4bf4cd71
Reviewed-on: https://skia-review.googlesource.com/25800
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
diff --git a/src/gpu/effects/GrTextureStripAtlas.cpp b/src/gpu/effects/GrTextureStripAtlas.cpp
index d0c6e47..02c8ce8 100644
--- a/src/gpu/effects/GrTextureStripAtlas.cpp
+++ b/src/gpu/effects/GrTextureStripAtlas.cpp
@@ -200,7 +200,8 @@
     builder[0] = static_cast<uint32_t>(fCacheKey);
     builder.finish();
 
-    sk_sp<GrTextureProxy> proxy = fDesc.fContext->resourceProvider()->findProxyByUniqueKey(key);
+    sk_sp<GrTextureProxy> proxy = fDesc.fContext->resourceProvider()->findProxyByUniqueKey(
+                                                                key, kTopLeft_GrSurfaceOrigin);
     if (!proxy) {
         GrSurfaceDesc texDesc;
         texDesc.fOrigin = kTopLeft_GrSurfaceOrigin;