Privatize GrBatch subclass overrides

src/gpu/batches/GrStrokeRectBatch.h

Index: src/gpu/batches/GrStrokeRectBatch.h
diff --git a/src/gpu/batches/GrStrokeRectBatch.h b/src/gpu/batches/GrStrokeRectBatch.h
index 2e81cc237fa98e495387fbb8ec299a140d738f72..ee053d723ea6588b3501e983134302e8f0cb45ba 100644
--- a/src/gpu/batches/GrStrokeRectBatch.h
+++ b/src/gpu/batches/GrStrokeRectBatch.h
@@ -36,10 +36,9 @@ public:
         out->setKnownSingleComponent(0xff);
     }
 
-    void initBatchTracker(const GrPipelineOptimizations&) override;
-
 private:
     void onPrepareDraws(Target*) override;
+    void initBatchTracker(const GrPipelineOptimizations&) override;
 
     GrStrokeRectBatch(const Geometry& geometry, bool snapToPixelCenters);