New API for computing optimization invariants.

src/gpu/batches/GrAADistanceFieldPathRenderer.cpp

Index: src/gpu/batches/GrAADistanceFieldPathRenderer.cpp
diff --git a/src/gpu/batches/GrAADistanceFieldPathRenderer.cpp b/src/gpu/batches/GrAADistanceFieldPathRenderer.cpp
index bb388d7af9ae8f8c89df87d14654fd619ecc362a..80fd54212cc68290da48c68c5006dd2f856b75c4 100644
--- a/src/gpu/batches/GrAADistanceFieldPathRenderer.cpp
+++ b/src/gpu/batches/GrAADistanceFieldPathRenderer.cpp
@@ -154,26 +154,26 @@ public:
 
     const char* name() const override { return "AADistanceFieldPathBatch"; }
 
-    void getInvariantOutputColor(GrInitInvariantOutput* out) const override {
-        out->setKnownFourComponents(fBatch.fColor);
-    }
-
-    void getInvariantOutputCoverage(GrInitInvariantOutput* out) const override {
-        out->setUnknownSingleComponent();
+    void computePipelineOptimizations(GrInitInvariantOutput* color, 
+                                      GrInitInvariantOutput* coverage,
+                                      GrBatchToXPOverrides* overrides) const override {
+        color->setKnownFourComponents(fBatch.fColor);
+        coverage->setUnknownSingleComponent();
+        overrides->fUsePLSDstRead = false;
     }
 
 private:
-    void initBatchTracker(const GrPipelineOptimizations& opt) override {
+    void initBatchTracker(const GrXPOverridesForBatch& overrides) override {
         // Handle any color overrides
-        if (!opt.readsColor()) {
+        if (!overrides.readsColor()) {
             fBatch.fColor = GrColor_ILLEGAL;
         }
-        opt.getOverrideColorIfSet(&fBatch.fColor);
+        overrides.getOverrideColorIfSet(&fBatch.fColor);
 
         // setup batch properties
-        fBatch.fColorIgnored = !opt.readsColor();
-        fBatch.fUsesLocalCoords = opt.readsLocalCoords();
-        fBatch.fCoverageIgnored = !opt.readsCoverage();
+        fBatch.fColorIgnored = !overrides.readsColor();
+        fBatch.fUsesLocalCoords = overrides.readsLocalCoords();
+        fBatch.fCoverageIgnored = !overrides.readsCoverage();
     }
 
     struct FlushInfo {