Removed redundant std::string -> string conversions.

PiperOrigin-RevId: 210596417

2 files changed, 4 insertions, 4 deletions

diff --git a/tensorflow/core/distributed_runtime/master_session.cc b/tensorflow/core/distributed_runtime/master_session.cc
index d34ca53f73..abd07e37b7 100644
--- a/tensorflow/core/distributed_runtime/master_session.cc
+++ b/tensorflow/core/distributed_runtime/master_session.cc
@@ -615,7 +615,7 @@ Status MasterSession::ReffedClientGraph::RunPartitionsHelper(
     // inadvertently slowing down the normal run path.
     if (is_partial_) {
       for (const auto& name_index : feeds) {
-        const auto iter = part.feed_key.find(std::string(name_index.first));
+        const auto iter = part.feed_key.find(string(name_index.first));
         if (iter == part.feed_key.end()) {
           // The provided feed must be for a different partition.
           continue;
@@ -959,7 +959,7 @@ Status MasterSession::ReffedClientGraph::CheckFetches(
     // Skip if already fed.
     if (input.second) continue;
     TensorId id(ParseTensorName(input.first));
-    const Node* n = execution_state->get_node_by_name(std::string(id.first));
+    const Node* n = execution_state->get_node_by_name(string(id.first));
     if (n == nullptr) {
       return errors::NotFound("Feed ", input.first, ": not found");
     }
@@ -975,7 +975,7 @@ Status MasterSession::ReffedClientGraph::CheckFetches(
   for (size_t i = 0; i < req.num_fetches(); ++i) {
     const string& fetch = req.fetch_name(i);
     const TensorId id(ParseTensorName(fetch));
-    const Node* n = execution_state->get_node_by_name(std::string(id.first));
+    const Node* n = execution_state->get_node_by_name(string(id.first));
     if (n == nullptr) {
       return errors::NotFound("Fetch ", fetch, ": not found");
     }
diff --git a/tensorflow/core/distributed_runtime/remote_device.cc b/tensorflow/core/distributed_runtime/remote_device.cc
index 15e5919c54..a043c5dee6 100644
--- a/tensorflow/core/distributed_runtime/remote_device.cc
+++ b/tensorflow/core/distributed_runtime/remote_device.cc
@@ -37,7 +37,7 @@ string GetLocalDeviceName(StringPiece fullname) {
   auto pos = fullname.rfind('/');
   CHECK_NE(pos, StringPiece::npos);
   fullname.remove_prefix(pos + 1);
-  return std::string(fullname);
+  return string(fullname);
 }
 
 class RemoteDevice : public Device {