Merge changes from github.

END_PUBLIC

---
Commit c2b8927f2 authored by Dandelion Man?<dandelion@google.com>
Committed by TensorFlower Gardener<gardener@tensorflow.org>:
Fix another d3v4 regression in the graph visualizer.

PiperOrigin-RevId: 156343038

---
Commit 170f0b350 authored by Peter Hawkins<phawkins@google.com>
Committed by TensorFlower Gardener<gardener@tensorflow.org>:
[TF:XLA] Add XLA implementation of ResourceStridedSliceAssign.

PiperOrigin-RevId: 156341053

---
Commit 1390dd68f authored by Vijay Vasudevan<vrv@google.com>
Committed by TensorFlower Gardener<gardener@tensorflow.org>:
When Op Type is not registered, log the hostname of the machine that
it is running on in the error message, since the message could be routed
back during a failure on a remote binary, and it is hard to tell which
machine it came from.

Ideally, we'd somehow log the name of the binary running instead, but
we don't have a function to get that right now.

PiperOrigin-RevId: 156337679

---
Commit 9ca8a151b authored by A. Unique TensorFlower<gardener@tensorflow.org>
Committed by TensorFlower Gardener<gardener@tensorflow.org>:
Internal change.

PiperOrigin-RevId: 156335942

---
Commit 40255434c authored by Martin Wicke<wicke@google.com>
Committed by TensorFlower Gardener<gardener@tensorflow.org>:
Deprecate contrib/learn/dataframe. To be removed June 15.

PiperOrigin-RevId: 156333930

---
Commit 7f71b7fbe authored by A. Unique TensorFlower<gardener@tensorflow.org>
Committed by TensorFlower Gardener<gardener@tensorflow.org>:
BEGIN_PUBLIC
Automated g4 rollback of changelist 156123287

PiperOrigin-RevId: 156503903

1 files changed, 1 insertions, 0 deletions

diff --git a/tensorflow/tools/proto_text/gen_proto_text_functions.cc b/tensorflow/tools/proto_text/gen_proto_text_functions.cc
index 17ab542a59..ecb29a65a0 100644
--- a/tensorflow/tools/proto_text/gen_proto_text_functions.cc
+++ b/tensorflow/tools/proto_text/gen_proto_text_functions.cc
@@ -130,6 +130,7 @@ int MainImpl(int argc, char** argv) {
 
       const string path = output_root + "/" + proto_path_no_suffix + suffix;
       FILE* f = fopen(path.c_str(), "w");
+      if (f == nullptr) return -1;
       if (fwrite(data.c_str(), 1, data.size(), f) != data.size()) {
         return -1;
       }