Use scratch with LATC data if possible

src/gpu/GrSWMaskHelper.h

Index: src/gpu/GrSWMaskHelper.h
diff --git a/src/gpu/GrSWMaskHelper.h b/src/gpu/GrSWMaskHelper.h
index 894f49c9cd7aec1404b5d8f7070e94a6d87f5320..6e75d212984e0251bfc9391a6c8d1563f0c3c0f7 100644
--- a/src/gpu/GrSWMaskHelper.h
+++ b/src/gpu/GrSWMaskHelper.h
@@ -64,8 +64,7 @@ public:
 
     // Move the mask generation results from the internal bitmap to the gpu.
     void toTexture(GrTexture* texture);
-
-    GrTexture* toLATCTexture(GrContext* ctx);
+    void toLATCTexture(GrTexture* texture);
 
     // Reset the internal bitmap
     void clear(uint8_t alpha) {