New API for computing optimization invariants.

src/gpu/batches/GrTestBatch.h

Index: src/gpu/batches/GrTestBatch.h
diff --git a/src/gpu/batches/GrTestBatch.h b/src/gpu/batches/GrTestBatch.h
index 02881c9668ed2c1d0a78355990a045b625baf52b..a9f6c868d5f3aed59b28600eff1a02943184b83d 100644
--- a/src/gpu/batches/GrTestBatch.h
+++ b/src/gpu/batches/GrTestBatch.h
@@ -26,13 +26,12 @@ public:
 
     virtual const char* name() const override = 0;
 
-    void getInvariantOutputColor(GrInitInvariantOutput* out) const override {
+    void computeBatchToXPOverrides(GrInitInvariantOutput* color, GrInitInvariantOutput* coverage,
+                                   bool* usePLSDstRead) const {
         // When this is called on a batch, there is only one geometry bundle
-        out->setKnownFourComponents(this->geoData(0)->fColor);
-    }
-
-    void getInvariantOutputCoverage(GrInitInvariantOutput* out) const override {
-        out->setUnknownSingleComponent();
+        color->setKnownFourComponents(this->geoData(0)->fColor);
+        coverage->setUnknownSingleComponent();
+        *usePLSDstRead = false;
     }
 
     void initBatchTracker(const GrPipelineOptimizations& opt) override {