Check for xfer barriers in GrBatch, auto-issue barriers in GrGpu

src/gpu/GrAAConvexPathRenderer.cpp

Index: src/gpu/GrAAConvexPathRenderer.cpp
diff --git a/src/gpu/GrAAConvexPathRenderer.cpp b/src/gpu/GrAAConvexPathRenderer.cpp
index 9850ddc48cdff100a7ba52840d7b0b0dd04abc6b..3d2ff456d71f3c570a943c7f843ef7f9017e5a7a 100644
--- a/src/gpu/GrAAConvexPathRenderer.cpp
+++ b/src/gpu/GrAAConvexPathRenderer.cpp
@@ -940,8 +940,9 @@ private:
         geometry.fViewMatrix.mapRect(&fBounds);
     }
 
-    bool onCombineIfPossible(GrBatch* t) override {
-        if (!this->pipeline()->isEqual(*t->pipeline())) {
+    bool onCombineIfPossible(GrBatch* t, const GrCaps& caps) override {
+        if (!GrPipeline::CanCombine(*this->pipeline(), this->bounds(), *t->pipeline(), t->bounds(),
+                                    caps)) {
             return false;
         }