Replaced calls to tensorflow::StringPiece::ToString with std::string conversions.

That is, instances of sp.ToString() are replaced with std::string(sp).

This will allow tensorflow::StringPiece::ToString to be removed, which is necessary before it can be replaced with absl::string_view.

PiperOrigin-RevId: 195188185

2 files changed, 8 insertions, 9 deletions

diff --git a/tensorflow/core/debug/debug_graph_utils.cc b/tensorflow/core/debug/debug_graph_utils.cc
index 4539ea5c0c..7641edea52 100644
--- a/tensorflow/core/debug/debug_graph_utils.cc
+++ b/tensorflow/core/debug/debug_graph_utils.cc
@@ -356,10 +356,9 @@ Status DebugNodeInserter::ParseDebugOpName(
             "Malformed attributes in debug op name \"", debug_op_name, "\"");
       }
 
-      const string key = seg.substr(0, eq_index).ToString();
-      const string value =
-          seg.substr(eq_index + 1, attribute_seg.size() - eq_index - 1)
-              .ToString();
+      const string key = std::string(seg.substr(0, eq_index));
+      const string value = std::string(
+          seg.substr(eq_index + 1, attribute_seg.size() - eq_index - 1));
       if (key.empty() || value.empty()) {
         return errors::InvalidArgument(
             "Malformed attributes in debug op name \"", debug_op_name, "\"");
diff --git a/tensorflow/core/debug/debug_io_utils.cc b/tensorflow/core/debug/debug_io_utils.cc
index baa8c08fdf..4998a7acfe 100644
--- a/tensorflow/core/debug/debug_io_utils.cc
+++ b/tensorflow/core/debug/debug_io_utils.cc
@@ -399,8 +399,8 @@ Status DebugIO::PublishDebugMetadata(
                               strings::Printf("%.14lld", session_run_index))),
           Env::Default()->NowMicros());
       status.Update(DebugFileIO::DumpEventProtoToFile(
-          event, io::Dirname(core_metadata_path).ToString(),
-          io::Basename(core_metadata_path).ToString()));
+          event, std::string(io::Dirname(core_metadata_path)),
+          std::string(io::Basename(core_metadata_path))));
     }
   }
 
@@ -632,8 +632,8 @@ Status DebugFileIO::DumpTensorToEventFile(const DebugNodeKey& debug_node_key,
   std::vector<Event> events;
   TF_RETURN_IF_ERROR(
       WrapTensorAsEvents(debug_node_key, tensor, wall_time_us, 0, &events));
-  return DumpEventProtoToFile(events[0], io::Dirname(file_path).ToString(),
-                              io::Basename(file_path).ToString());
+  return DumpEventProtoToFile(events[0], std::string(io::Dirname(file_path)),
+                              std::string(io::Basename(file_path)));
 }
 
 Status DebugFileIO::RecursiveCreateDir(Env* env, const string& dir) {
@@ -642,7 +642,7 @@ Status DebugFileIO::RecursiveCreateDir(Env* env, const string& dir) {
     return Status::OK();
   }
 
-  string parent_dir = io::Dirname(dir).ToString();
+  string parent_dir = std::string(io::Dirname(dir));
   if (!env->FileExists(parent_dir).ok()) {
     // The parent path does not exist yet, create it first.
     Status s = RecursiveCreateDir(env, parent_dir);  // Recursive call