Update GraphDef version to 146.

PiperOrigin-RevId: 266739879
diff --git a/tensorflow/core/public/version.h b/tensorflow/core/public/version.h
index 3c9cb01..fd09920 100644
--- a/tensorflow/core/public/version.h
+++ b/tensorflow/core/public/version.h
@@ -108,7 +108,7 @@
 
 #define TF_GRAPH_DEF_VERSION_MIN_PRODUCER 0
 #define TF_GRAPH_DEF_VERSION_MIN_CONSUMER 0
-#define TF_GRAPH_DEF_VERSION 145  // Updated: 2019/9/1
+#define TF_GRAPH_DEF_VERSION 146  // Updated: 2019/9/2
 
 // Checkpoint compatibility versions (the versions field in SavedSliceMeta).
 //