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

src/gpu/batches/GrRectBatch.cpp

Index: src/gpu/batches/GrRectBatch.cpp
diff --git a/src/gpu/batches/GrRectBatch.cpp b/src/gpu/batches/GrRectBatch.cpp
index 1cfa0936130166fa9da3cb1df9d2b651aa0d07c7..1d5b9f305bcb35aab934ff27467079005177ec00 100644
--- a/src/gpu/batches/GrRectBatch.cpp
+++ b/src/gpu/batches/GrRectBatch.cpp
@@ -80,8 +80,9 @@ void GrRectBatch::generateGeometry(GrBatchTarget* batchTarget) {
     helper.issueDraw(batchTarget);
 }
 
-bool GrRectBatch::onCombineIfPossible(GrBatch* t) {
-    if (!this->pipeline()->isEqual(*t->pipeline())) {
+bool GrRectBatch::onCombineIfPossible(GrBatch* t, const GrCaps& caps) {
+    if (!GrPipeline::CanCombine(*this->pipeline(), this->bounds(), *t->pipeline(), t->bounds(),
+                                caps)) {
         return false;
     }