New API for computing optimization invariants.

src/gpu/batches/GrDrawVerticesBatch.h

Index: src/gpu/batches/GrDrawVerticesBatch.h
diff --git a/src/gpu/batches/GrDrawVerticesBatch.h b/src/gpu/batches/GrDrawVerticesBatch.h
index 8503b0121e28bf991c9822bf73972c3177fd5fdf..1de2a2401fce719a76452d0f3ec7090ac9d2f8d5 100644
--- a/src/gpu/batches/GrDrawVerticesBatch.h
+++ b/src/gpu/batches/GrDrawVerticesBatch.h
@@ -42,9 +42,8 @@ public:
 
     const char* name() const override { return "DrawVerticesBatch"; }
 
-    void getInvariantOutputColor(GrInitInvariantOutput* out) const override;
-
-    void getInvariantOutputCoverage(GrInitInvariantOutput* out) const override;
+    void computeBatchToXPOverrides(GrInitInvariantOutput* color, GrInitInvariantOutput* coverage,
+                                   bool* usePLSDstRead) const override;
 
     SkSTArray<1, Geometry, true>* geoData() { return &fGeoData; }