Privatize GrBatch subclass overrides

src/gpu/GrAAConvexPathRenderer.cpp

Index: src/gpu/GrAAConvexPathRenderer.cpp
diff --git a/src/gpu/GrAAConvexPathRenderer.cpp b/src/gpu/GrAAConvexPathRenderer.cpp
index 9ef506d88cd22bd9cbac2768966010f8108b4f91..0eabe66c9dec3a0202a1f001caef9ba52266d72a 100644
--- a/src/gpu/GrAAConvexPathRenderer.cpp
+++ b/src/gpu/GrAAConvexPathRenderer.cpp
@@ -761,6 +761,8 @@ public:
         out->setUnknownSingleComponent();
     }
 
+private:
+
     void initBatchTracker(const GrPipelineOptimizations& opt) override {
         // Handle any color overrides
         if (!opt.readsColor()) {
@@ -929,7 +931,6 @@ public:
 
     SkSTArray<1, Geometry, true>* geoData() { return &fGeoData; }
 
-private:
     AAConvexPathBatch(const Geometry& geometry) {
         this->initClassID<AAConvexPathBatch>();
         fGeoData.push_back(geometry);