Rename GrBatchFlushState to GrOpFlushState

Change-Id: I1a8052c61d7624929caf45ba44e2a465cd0dc1c2
Reviewed-on: https://skia-review.googlesource.com/5649
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
diff --git a/src/gpu/batches/GrDrawOp.h b/src/gpu/batches/GrDrawOp.h
index 8ad22d9..7606b0c 100644
--- a/src/gpu/batches/GrDrawOp.h
+++ b/src/gpu/batches/GrDrawOp.h
@@ -37,7 +37,7 @@
 private:
     GrDrawOpUploadToken();
     explicit GrDrawOpUploadToken(uint64_t sequenceNumber) : fSequenceNumber(sequenceNumber) {}
-    friend class GrBatchFlushState;
+    friend class GrOpFlushState;
     uint64_t fSequenceNumber;
 };